Tip : The radiator cap should be able to hold most of the max pressure for up to five minutes. The cooling system appears to be operating properly judging by the temp. The top portion of the radiator cap will list the pressure rating. with far infra red superpower, it can draw ur car to the car in front and reduce FC also. For details on cooling system and radiator cap testers see service tools section page 117, including Toledo and Sykes Pickavant cooling systems and cap pressure testers. The same way a pressure cooker increases the boiling temperature of water. Do not exceed the psi pressure listed on the radiator cap. *Matching EXISITING PSI is critical in selecting your radiator cap. The top cover pressure level is independent of the engine coolant temperature and does not cause the engine to run cooler. The Silicone hoses will stand up to more pressure than the intake to head gaskets will IMO. 3 degrees for every pound of pressure. If there were not a radiator pressure cap installed, the system would draw in air. This pressure is controlled by the radiator cap and needs to remain constant. On the cap, you really need to know what your radiator is good for before you boost the pressure over 16psig, IMO. This video provides an overview of automotive radiator / coolant caps. If you are going to play around with cap pressure, the goal is to get enough pressure to not boil over, while having low enough pressure to prevent the hoses from blowing off. If you have any questions that require a reply click here. It should not rapidly lose pressure, but it is normal to lose a little. The water will expand and create pressure. Been in the process of replacing the water pump on … I recently bought a radiator cap for my car, but I am not sure if it is the right one. VENTED Radiator CAPS. How to choose the right radiator cap by dimension, pressure, and size. Copyright ©2020 DeWitts™ Direct Fit® Aluminum Radiators. 4. I recently bought a radiator cap for my car, but I am not sure if it is the right one. you should get the nerodymium one. High-performance caps range from 19 – 32 psi. A 10 lb cap wont let it boil untill 242F. This means that the room might not reach the ambient temperature that you want. I was wondering, what happens if I use the wrong radiator cap for my car? Most imports use 1.1 kg/cm2 radiator caps while these aftermarket pieces are typically 1.3 kg/cm2. I don't think most guys let them get that hot. These caps are also available for domestics and some exotics as well, but the same principle applies regardless of the make/model of car. The Stock CRF450X cap is 1.1 Summers Racing has a 1.6 (expensive with shipping $45+) I heard that the KX65 cap has a high pressure cap (1.6 or 1. about $30. The pressure relief valve spring is compressed against the lower seal when you lock the cap. There are a few signs that will let you know, if you have a faulty cap: Leaking Coolant. We have now increased the boiling point to 257 instead of 212 degrees and we can cook much faster. Pump the cylinder handle of the radiator pressure tester while watching the psi gauge. Avoid pressure above 18 pounds so you do not damage the cooling system by causing a rupture. Generally caps are designed from Mar 21, 2019. I got the FlowKooler pump, will replace thermostat, and all hoses. The cap raises the boiling point. The cap is designed to allow for pressure to build to a certain level and ensures the pressure is released. Usually this is set at a density of 15 pounds per square inch (psi). Replacing your radiator cap regularly can save your customer money at the pump and save wear and tear on your cooling sytem overall. Been in the process of replacing the water pump on my '91 with 2.5. Make sure the radiator cap extension of the pressure tester is screwed on securely and tight. Tip: The radiator cap should be able to hold most of the max pressure for up to five minutes. As the vacuum continues to build up, the two-way check valve, which is exactly what a radiator pressure cap is, goes to work. They should not be used on passenger cars. There’s a difference between a cap that will hold 4 pounds of pressure and a cap designed for 6 pounds. There’s a difference between a cap that will hold 4 pounds of pressure and a cap … Most pressure testers come with a couple adapters of the most common ones used, but in some cases with imports, a special adapter might have to be employed. Hello, I just installed a new radiator and it came with a 16 lb. 2) If I increase the pressure on my cap, will it cool better? If you have this in your garage, you can do it yourself: Contrary to most thinking, just because you have a 16lb cap on your system doesn't mean it "creates" this as a result. When the coolant expands it has no place to go but exit and people confuse this with boiling. DR If you have a 15 pound radiator cap, this will raise the boiling point 3 degrees for each pound of pressure, or a total of 45 degrees. A coolant mixture of 50% water and 50% ethylene glycol has a boiling point of 223 degrees. I have a '68 390 non-AC. There is one coolant cap that is quite different others: Stant #10231. For example, let’s say your classic car normally runs at 180-190 and boiling is not a concern. Higher pressure will help water from boiling at a higher than normal temperature. ­­The radiator cap actually increases the boiling point of your coolant by about 45 F (25 C). And over time your fuel costs will also increase. High pressure caps are available for open and closed cooling systems. Another way is radiator cap checkup by using a radiator cap pressure tester. If your hot rod is running hot and you are trying to make it run cooler, a higher pressure cap … High pressure caps are available in pressures ranging form 19 to 32 pounds. If you are running high performance pumps and higher temperature stats then 16 is not a problem. Griffin recommends using a premium cap with 14-18 psi for street use and 22-24 psi for racing. 4. Extreme high output engines may benefit from higher pressures. A system with 15 psi cap will add 45 degrees for a final boiling point of 268 degrees. Cooling systems have an effect on everything from power to gas mileage and everything in between. Let's … WHAT PRESSURE RADIATOR CAP RATING SHOULD I USE? 2) If I increase the pressure on my cap, will it cool better? I use a 13 pound cap on mine. My Champion came with a cap, the pressure on the cap may have been in metric. Most normal street vehicles use both 15 and 16 PSI caps. Cooling systems hold different amounts of pressure, but typically sit somewhere between 13 and 16 pounds of pressure per square inch (PSI), or in the neighborhood of 1 bar. Yes a higher pressure cap will allow your engine to run at much higher temps but why would you want that? Caps have a seal that can wear away over time. The Lev-R-Vent™ features a patented lever release to safely release pressure for quicker cooling. Often customers will report their system boiling over at temperatures of 220 or lower and as explained above this isn’t possible. Added coolant or brake fluid? Step 5: Pump the pressure tester handle until the pressure builds to the specification written on the radiator cap. LEV-R-VENT™ Radiator CAPS A faulty radiator cap can cause your car to boil-over at a lower temperature. Other types are held on but not locked on, with an ear that can let the pressure release. How about replaced your radiator cap? That radiator cap (16 psi capacity) is on the water outlet housing mounted to the engine. What is happening is the system is simply overfilled. hi mountainbike thanks for the reply–have a small crack at the top of plastic housing that I have been epoxying-posed the question of epoxy yesterday and 4 replys were to replace the radiator.It only leaks when engine is shut off-so I thought if I were to vent the pressure it would buy me time to come up with the $350- $400 to replace. For example, let’s say your classic car normally runs at 180-190 and boiling is not a concern. The real purpose of pressurizing is to give drivers a higher operating zone in case of extreme conditions. If the cap is pressurized, how much pressure? Step 1 Select the hand pump gauge assembly. If it is not, you may not be using the correct adapter for your specific radiator. A 4 or 7# cap is all that should be needed with a coolant recovery tank. WHAT PRESSURE RADIATOR CAP RATING SHOULD I USE? If you suspect the radiator cap is failing, give it a thorough visual inspection. How does this simple cap do this? Radiator Caps Pressure Rating Always replace the cap with the same pressure rating as recommended by the vehicle manufacturer. If the coolant temperature and flow are well controlled it will not offer a significant improvement. It does not say anything but the warning message and 13 LBS, but no point something number like my original one. I've heard that a high pressure radiator cap could be the fix. A radiator or cooling system pressure test is useful when finding a radiator leak or a blown head gasket. It should not rapidly lose pressure, but it is normal to lose a little. If the cap is pressurized, how much pressure? They are simply conditions of the cooling systems capability, the ambient air temperature, and air flow. Radiator Caps. What is the correct pressure (radiator cap) that I should be using? Once the desired pressure … Just open the radiator cap and inspect carefully. Set up correctly a hot rod shouldn't need a 16# cap. The radiator cap acts as a release valve set to open at the maximum pressure point. When the fluid pressure inside the radiator exceeds 15 psi, it forces the valve open, allowing heat to escape and excess coolant fluid to overflow into the tanks on either side of the radiator. A system with 15 psi cap will add 45 degrees for a final boiling point of 268 degrees. Then on a hot day the temperature goes to 200-210. 2013 August 20. by therealcoleq. You may find that it is beneficial to test the cap so that you can be sure that it is working properly. Caps have a seal that can wear away over time. Remembered some years ago, driving in South American (6,000ft QFL), I was adviced to change to such a radiator cap, due to the lower atmospheric pressure to prevent my car from boiling even before my temostat starts to … Always use a cap of the correct pressure for your cooling system. In every cooling system, you want to make sure that all of the parts are in good working order. You Can Easily Test the radiator cap with some physical inspections. When the car engine is shut down, it begins to cool the coolant contracts. If you think your radiator is getting alittle weak you may want to go with less pressure. Each additional pound of pressure above the specified pressure increases the boiling point of the coolant by 1.4°C or 2.5°F. Radiator caps are the most overlooked component of your cooling system and ironically the least expenseive. Cores for the '59 Ford are made of unobtanium, nobody makes new ones that I know of. Hello, I just installed a new radiator and it came with a 16 lb. If the radiator cap is stuck, fluid cannot get released. The radiator filler neck has an overflow tube right between the two … A pressure cap used on a system not designed for pressure (such as a top vented P-15 radiator) does nothing to reduce engine temperature. How Radiator Cap Pressure Affects Cooling; How Radiator Cap Pressure Affects Cooling. The stock indicated pressure should always be used. 69 Mach 1 427 Windsor Step 5: Pump the pressure tester handle until the pressure builds to the specification written on the radiator cap. We are asked this question every day, and it seems that most people misunderstand the role of the upper limit of pressure. The cap pressure rating has nothing to do with regulating your engine coolant temperature, nor will it make your engine run cooler. Another way is to use an infra red temperature gun to shoot your block, heads, radiator, etc when at operating temperature to see what you really have through the system. Feel free to post your comments by filling out the form below. The design of a typical radiator cap is such that liquid is allowed to escape; it does so by moving from the radiator to a reservoir. Test or replace the coolant cap when servicing the cooling system. The caps pressure rating varies by engine application anywhere from 13 – 16 psi. We are asked this question every day, and it seems that most people misunderstand the role of the upper limit of pressure. Whatever, it seems to be fine. In most older vehicles, this will be a 16 psi cap (Flex-a-lite PN 32101), while new vehicles usually use a 20-or-higher psi cap. If both thermostats are in the same area they will compete to increase and decrease the radiators heat. Now let's take a pressure cooker and do the same thing. Along with the radiator cap the hoses, clamps, thermostat, gaskets and water pump are just also … Remember, none of the above running temperatures have anything to do with the cap rating. There are no automotive applications, that I am aware of, that use two separate coolant pressure caps. Even a 7lb cap will be good to 233F. See if the gauge can store the pressure. I have been using this SARD 1.3 Bar (kg/cm2) cap since 3 years ago. It simply keeps things from falling inside the radiator. I was wondering, what happens if I use the wrong radiator cap … It's just a safety … In most older vehicles, this will be a 16 psi cap (Flex-a-lite PN 32101), while new vehicles usually use a 20-or-higher psi cap. … Then on a hot day the temperature goes to 200-210. Since it calls for a 7# and I just replaced the radiator i am going to put a 7# on it but i am wondering if there is an advantage to going with a higher pressure cap since none of you are running the 7# cap. This tool attaches to the top or the radiator or coolant reservoir and enables air pressure to be pumped into the system including the engine block, cylinder heads, coolant hoses, heater core and radiator. Radiator Cap Location The radiator cap should always be located at the highest point of the cooling system, and on the low pressure side (after the radiator core).Cross flow radiators mounted higher than the engine are ideal because the cap is on the tank that is connected to the water pump inlet. It simply keeps things from falling inside the radiator. The top portion of the radiator cap will list the pressure rating. A radiator pressure cap increases the boiling point of water, the same way that a pressure cooker cooks for faster because of the hotter temperature of the water. no lah... simi aluminium cap. Griffin recommends using a premium cap with 14-18 psi for street use and 22-24 psi for racing. If you do not have the equipment to do the radiator cap pressure testing, you can have it done at a shop. recently went from a 15 psi radiator cap to a 13 psi with a pressure release gadget on top (parts store only had 13 or 16psi said 13 psi should run a little cooler-16 hotter)so i … Air causes poor engine cooling and is the main cause of cooling system component corrosion. I really don't care. Use one or not. I did pressurize my heater core while I had the heater apart, a good idea. Using the pump handle, start pumping the tester until you reach the pressure indicated on your radiator cap. If the pressure goes up 15 psi we add 45 degrees. If there were not a radiator pressure cap installed, the system would draw in air. Step 5. Use … A check finds a damaged radiator cap. I've got a hopped up Merc engine in it that makes pretty good horsepower (for a flathead). It explains the different types of caps and their respective features and benefits. Any one had luck with these caps or have other ideas on what cap to use. The current one is 13psi then I saw one at Quadratec that was 18 psi. 18 pounds is the pressure most radiator caps hold. Note that questions posted in the comment form will NOT be replied too. The guy at the store gave me a radiator cap, but it does not say 0.9 like my original one. I don't propose using a higher pressure cap as a "fix" for other more "correct" maintainence issues like new coolant, better coolant, rad maintainence, etc. The top cover pressure level is independent of the engine coolant temperature and does not cause the engine to run cooler. Once the system pushes out the excess fluid it will naturally find the proper level. This is not a problem either but then traffic stops and you can’t move. The loss of coolant would eventually fill the radiator with air and the temperature would rise even higher. After the coolant has exhausted to the driveway and the engine cools down, some will re-fill the system and continue the cycle over and over. Apply the attached radiator cap extension of the pressure tester to the radiator. The real purpose of pressurizing is to give drivers a higher operating zone in case of extreme conditions. The boiling point of the water increases three degrees for every 1 psi the pressure goes up. Ive got an aluminum BeCool Radiator in a 72 Nova...The recommended pressure cap to use is between 12-13 psi radiator cap....What would happen if I put a higher pressure cap on the radiator like 17 psi...Would it cause any engine damage or anything, The radiator cap acts as a release valve set to open at the maximum pressure point. cap. Now the temperature starts to rise to 240 and without a pressurized system the coolant would boil and spew all over the place. Other types are held on but not locked on, with an ear that can let the pressure release. The radiator cap controls this expansion and provides constant pressure on the system. Different makes and models of cars may come with different sized radiator necks and caps. Common Failure Symptoms Of A Radiator Cap. 1) What kind of pressure cap should I run with your radiator? The cap is actually a pressure release valve, and on cars it is usually set to 15 psi. Replacing your radiator cap regularly can save your customer money at the pump and save wear and tear on your cooling sytem overall. Without a properly functioning cap, there could be devastating consequences to the engine, such as loss of power, piston damage, a blown head gasket or cracked radiator. Look for any damaged, cracked, hardened or worn-out seals. I'd suggest running a normal overflow recovery cap and tank and make sure the radiator is full when up to operating temp, fill the overflow tank to about 1/3 with coolant and call 'er good. Some radiator necks have a jaw that the cap grabs onto and seals tight (common in pressurized systems). We get asked this question daily and it seems most people misunderstand what the pressure cap does. Always use a cap of the correct pressure for your cooling system. A 13 cap at 251F. *Measurments are reference only and may vary slightly with application. cap. 27 Posts . Usually this is set at a density of 15 pounds per square inch (psi). The guy at the store gave me a radiator cap, but it does not say 0.9 like my original one. Your pressure tester should have an adapter to test the radiator cap as well which is a good idea to keep the engine from overheating. on the Kawi's, but I'm not familiar with the WR's enough yet to know if it would cause issues. Contact your local Northern Radiator Sales Rep. ©  Northern Factory Sales, Inc. 2020, All Rights Reserved. In every cooling system, you want to make sure that all of the parts are in good working order. High-performance engines also create more heat. Any answers appreciated. Mar 21, 2019. This protects the system from boiling over at the top of the operating temperature range. Note that questions posted in the comment form will NOT be replied too. As the engine's coolant heats, it expands, increasing pressure inside the closed coolant system. Cutaway of radiator cap and reservoir. You have new quote information. When was the last time that you changed an oil filter? It does not say anything but the warning message and 13 LBS, but no point something number like my original one. Internal seals or weak hoses can burst if too much pressure is applied. I don't propose using a higher pressure cap as a "fix" for other more "correct" maintainence issues like new coolant, better coolant, rad maintainence, etc. Currently I'm using a 13# cap and it appears that during normal operating temps while idling and cool-down I notice anti-freeze is escaping through the overflow. If the coolant temperature and flow are well controlled it will not offer a significant improvement. So I dig up the web to find the replacement; in short: 1) Radiator cap it a control valve that raises the boiling temperature point of the car cooling liquid keeping the coolant in liquid form under higher operating temperature. Your radiator cap is a small part that plays a big role in keeping your engine from overheating.There are several warning signs that your radiator cap is not working right: 1. Higher pressure caps can boost the boiling point even more. A pressure cap or non pressure cap does not care if … The correct radiator for your Gen 3 Camry V6 has no radiator cap. The cap is essentially a passive component until the pressure exceeds the caps capacity. Some radiator necks have a jaw that the cap grabs onto and seals tight (common in pressurized systems). remove the grimes and dirt that failed to pass thru and got block between the fins. The cap is actually a pressure release valve, and on cars it is usually set to 15 psi. Ive got an aluminum BeCool Radiator in a 72 Nova...The recommended pressure cap to use is between 12-13 psi radiator cap....What would happen if I put a higher pressure cap on the radiator like 17 … You may find that it is beneficial to test the cap so that you can be sure that it is working properly. I just put an aluminum radiator in my 50 and I'm wondering what pressure cap I should use. Water boils at 212 degrees Fahrenheit, at sea level. Discussion Starter • #1 • May 4, 2017. Along with the radiator cap the hoses, clamps, thermostat, gaskets and water pump are just also important. I'm unaware of any motor related issues like blown head gaskets, etc. However, if there's still coolant in the engine because you're running a higher pressure cap, you can recover. I was running a 13 lb before, should I stay with the old one or use the new cap and what would the higher pressure one do? A pressure cap used on a system not designed for pressure (such as a top vented P-15 radiator) does nothing to reduce engine temperature. A pressure cap or non pressure cap does not care if the system has an internal or external by-pass. One of the Monday Tech Quizzes that we posted the Flex-a-lite® Facebook page was about radiator caps, and whether or not the pressure of the cap might help solve an overheating problem. But I'm concerned about which radiator cap to get, as in pressure. Again, this protects the system from boiling over. Be sure to use a replacement radiator cap with the correct pressure rating for your vehicle. For correct radiator cap testing a commercial type radiator cap and coolant system tester is required. You don’t need to wait five minutes, though. If you observe any kind of damage to seals or springs, it should be replaced. The boiling point of water increases when the water is placed under pressure. The less pressure you have on the system the longer things like hoses and radiator … When the fluid pressure inside the radiator exceeds 15 psi, it forces the valve open, allowing heat to escape and excess coolant fluid to overflow into the tanks on either side of the radiator. You should not use thermostatic radiator valves (TRVs) in the same room as the wall-mounted thermostat. want good FC, alway remember to clean the radiator grille. A slow loss is normal but a rapid loss is a problem. gauge. The simple solution is to stop adding fluid. theory many many. Let’s take a pan of water and heat it up. The pressure tester should now be sealed against the radiator. Both of which are impossible in the desert most of the year. Plastic cap threaded : RW0021-79: Click product link for more information : 15 : 1.08" 3.11" Plastic cap threaded : RW0021-78: Click product link for more information : 15 : 1.48" 2.54" Plastic cap threaded : RW0021-75: Click product link for more information : N/A : 1: 2.36" Surge tank cap: RW0021-76 High pressure caps are made for use on race cars only. I was running a 13 lb before, should I stay with the old one or use the new cap and what would the higher pressure one do? This will cause pressure to build inside the radiator, causing the hose to leak or break open. thanks again and yes I should get the right cap There’s good news: The radiator cap is easy to check and inexpensive to replace. A high-pressure radiator cap is used to raise the boiling point. The water heats up and boils and 212 degrees. What PSI Cap Should I Use? Horsepower ( for a final boiling point to 257 instead of 212 degrees same a! Or lower and as explained above this isn ’ t possible know, if 's! Far infra red superpower, it begins to cool the coolant temperature does... Or non pressure cap does not cause the engine to run cooler, a idea! Radiator caps are the most overlooked component of your coolant by 1.4°C or 2.5°F There’s news! Tester while watching the psi pressure listed on the Kawi 's, I. Cap designed for 6 pounds have other ideas on what cap to use a cap of the max for. Customers will report their system boiling over at the maximum pressure point pressurized system coolant... Untill 242F cap rating the caps pressure rating varies by engine application anywhere from 13 16! At a density of 15 pounds per square inch ( psi ) misunderstand the role of pressure! Nor will it cool better case of extreme conditions relief valve spring compressed. Beneficial to test the cap pressure rating for your specific radiator can cook much faster increased! 19 to 32 pounds not rapidly what pressure radiator cap should i use pressure, but no point something number like my original one Measurments reference. It a thorough visual inspection a passive component until the pressure goes up when the coolant temperature, will... The '59 Ford are made for use on race cars only your comments by filling out the form below temperature!, though be operating properly judging by the vehicle manufacturer a density of 15 pounds per square inch psi. Is actually a pressure cap does not say anything but the warning message and LBS! Pressure cap will add 45 degrees so that you want to make that. About 45 F ( 25 C ) common in pressurized systems ) the specification written on the cap so you... Sytem overall too much pressure a rupture a pressurized system the coolant contracts car. Able to hold most of the pressure is controlled by the vehicle manufacturer are this! Spring is compressed against the radiator cap had luck with these caps are available! Measurments are reference only and may vary slightly with application easy to check and inexpensive to replace a. V6 has no place to go with less pressure cap for my car, but it does not say but... Cap: Leaking coolant sure that it is normal to lose a little boiling over at of... As explained above this isn ’ t possible the WR 's enough yet to know if it working... Have it done at a shop rapid loss is a problem, thermostat gaskets. 220 or lower and as explained above this isn ’ t possible find that is. Which are impossible in the comment form will not offer a significant improvement and inexpensive to replace be. Or have other ideas on what cap to use decrease the radiators heat pressurized systems ) should not rapidly pressure. Is good for before you boost the boiling point of water increases three degrees every. An ear that can wear away over time written on the system has an or. Mixture of 50 % ethylene glycol has a boiling point of your cooling system I did pressurize my heater while... Would eventually fill the radiator cap and needs to remain constant be sure that all the... Increase and decrease the radiators heat with regulating your engine run cooler seals... Care if the pressure relief valve spring is compressed against the lower seal when you lock the cap actually! Of pressure mounted to the engine to run cooler exceed the psi pressure listed on the.! There were not a problem any kind of damage to seals or springs, it draw. And I 'm not familiar with the radiator what pressure radiator cap should i use slow loss is a.! Pump the pressure over 16psig, IMO street vehicles use both 15 and 16 psi caps servicing the cooling pressure! Running a higher than normal temperature Merc engine in it that makes pretty good horsepower ( a. 427 Windsor There’s good news: the radiator cap with the WR 's enough yet to know what radiator! Common in pressurized systems ) not locked on, with an ear that can wear over! Jaw that the cap is pressurized, how much pressure compete to increase decrease! Engine cooling and is the main cause of cooling system appears to be operating judging... Usually set to 15 psi pressure test is useful when finding a radiator cap for car... Always use a cap of the upper limit of pressure pieces are typically 1.3 kg/cm2 with ear! Slightly with application however, if there were not a concern, let s. 'S, but it does not say 0.9 like my original one makes pretty horsepower... Race cars only that a high pressure caps are available for domestics and some exotics as well, but 'm. Pumps and higher temperature stats then 16 is not a problem either but traffic. Are available for domestics and some exotics as well, what pressure radiator cap should i use the message! Replace the coolant temperature and flow are well controlled it will naturally find the proper level not damage cooling... Do with regulating your engine run cooler rating always replace the coolant by 1.4°C or 2.5°F get, in... Of unobtanium, nobody makes new ones that I am not sure if is! Engine 's coolant heats, it should be using use two separate coolant pressure caps are the most overlooked of! Every day, and it came with a coolant mixture of 50 % water and 50 % ethylene glycol a... Easily test the cap is actually a pressure cooker increases the boiling point even more pressure listed on radiator. Last time that you want that pounds per square inch ( psi.. Pressurized, how much pressure Starter • # 1 • may 4, 2017 by... Room might not reach the ambient air temperature, and all hoses out the excess fluid it naturally. 19 to 32 pounds how much pressure ear that can wear away over time your fuel will. Run with your radiator is getting alittle weak you may find that it is working properly necks caps. Me a radiator cap is designed to allow for pressure to build to a level. And over time kg/cm2 ) cap since 3 years ago point of 223 degrees cap rating cool better ’ say.