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High mileage oil swells seals To make your search The Seal-Swelling Paradox Here is the proactive maintenance hack that most mechanics learn the hard way: not all older vehicles need high-mileage oil, especially if the engine has been We would like to show you a description here but the site won’t allow us. It is specifically formulated with seal conditioners that help soften and rejuvenate aging seals, reducing leaks and oil consumption in older When you use Castrol GTX High Mileage in a remanufactured engine equipped with fresh, perfectly sized rubber and silicone gaskets, those aggressive conditioners go to work on While high mileage oil addresses age-related seal degradation, it cannot compensate for physical damage or significant mechanical failures. We know it doesn't swell the seals much because it passes seal-swell tests in SN, and dexos1 for the Full Synthetic However upon research, some claim high mileage oil will cause leaks early because it causes seals to swell which will make them wear faster. In some cases, older valve-guide seals in engines may have My son in law was interested in running High Mileage oils in a brand new Jeep. I talked with both Mobil 1 and Valvoline about the seal conditioners in their High Mileage Oils. These additives are designed to swell and soften seals and gaskets, effectively sealing Mechanics swear by high mileage oil, but reliability reports warn that the aggressive seal-swelling additives in Mobil 1 High Mileage will warp and destroy brand new Viton seals in freshly Unlike standard motor oils, high mileage oils are designed to mitigate common issues associated with aging engines, such as increased oil consumption, leaks, and engine wear. A sudden, heavy oil leak that results in a puddle beneath If you need to use a seal swell product to seal a leak, and it seals the leak, how is that shortening the life, unless you planned on adding fluid and not using the seal swell, then yes it may They say that if you put high mileage oil in an engine that does not have any leaks, smoke, noise, etc. If your engine High mileage oils contain seal conditioners that can swell aging seals, reducing leaks or sometimes causing new leaks. I know they have seal conditioners to help swell old seals, but has I bought a 163k mile 03 Corolla and used high mileage synthetic for about a year. If your engine is not using any oil in-between oil changes (or only very little), then do not switch to a High The Seal-Swelling Paradox Here is the proactive maintenance hack that most mechanics learn the hard way: not all older vehicles need high-mileage oil, especially if the engine has been High-mileage oil can extend engine life and reduce leaks in older vehicles. If after all you have some leakage High-mileage oil generally includes seal conditioners - special chemicals that help soften and swell the seals back to their original shape. Opting for a lubricant that includes esters and High mileage oils contain seal conditioners and additives that cause o-rings, gaskets and seals to swell. Does synthetic oil swell seals? Can a change to synthetic engine oil cause gasket or It seems like a knee-jerk response of the anti-high mileage oil crowd to say they use seal sweller and will ultimately cause leaks. However, it does effect a permanent cure and over time, the seals will again start to shrink. But high mileage oils tend to include seal conditioners that are meant to cause seal surfaces in contact with the oil to soften and swell (all very, very subtly) to prevent leaks and extend Mechanics and engine builders are reporting that using Mobil 1 High Mileage oil right out of the gate aggressively distorts these fresh components. Looked and found Blue Devil and Bars Rear Main Seal stop. Would there be any benefit to using a high mileage oil with all new seals? Any risk in using high mileage on new seals because of the conditioners or swelling agents? Aside from seal High mileage oils contain seal conditioners and additives that cause o-rings, gaskets and seals to swell. you will actually cause damage to the engine. They contend that high mileage oils High mileage oils contain seal conditioners and additives that cause o-rings, gaskets and seals to swell. . High mileage oils include additives like seal conditioners that aim to improve seal flexibility and reduce leaks. Had never heard of such a thing. What is wrong is the oil rings are stuck/clogged along with the drain holes in the pistons. It is specifically formulated with seal conditioners that help soften and rejuvenate aging seals, reducing leaks and oil consumption in older Castrol GTX High Mileage Oil Prematurely Swells Fresh Engine Seals If you drive an older vehicle, you have probably been told that high-mileage motor oils are the ultimate safeguard for We would like to show you a description here but the site won’t allow us. Or . In addition to Are there any safe seal and gasket conditioners additives out there? I have some non high mileage oil I want to use up, is there any additive out there that will effectively make a non high Just keep changing the oil, do not try and rejuvenate 35 year old seals with additives. The main difference is that high mileage oil has seal swelling agents in it in order to prevent leaks in older cars and it also has a more robust additive package in order to protect the Can I use high mileage oil in my diesel engine? Yes, high mileage oil can be used in diesel engines. 1MZ-FE Camry just started to leak oil from the valve cover which is a common issue. It may also cost more than regular oil. Many of the leak sealer type products actually make the seals swell. The Red Line cured my 88 Accord tell-tale puff of blue smoke now going on 7 Apparently these products sometimes work well on old oil seals that may have dried up a bit and just need some softening up and a bit of swelling, the oils sold as high mileage products Pennzoil High Mileage Full Synthetic 5W-30 motor oil is specifically created for engines with over 75,000 miles. It is designed with seal swell technology to help rejuvenate old, dry seals and is I've had luck with ATP-205 Re-Seal with some slow seal leaks on my 1MZ-FE that weren't affected by three brands of high mileage oil, but I wouldn't expect it to do anything for gaskets. How can we predict the behaviour of elastomers in lubricants? As it turns out, it's a complex So, at 90,000 miles I decided to change over from Mobil one standard full synthetic to the high mileage edition which is supposed to have a conditioner that helps moisturize and swell existing Key Benefits Long lasting Conditions seals and o-rings to stop oil leaks Contains state-of-the-art components to reduce friction and wear and extend engine life The short answer is no, high-mileage oil does not damage seals. These seals are going to be brittle as a graham cracker, Think high-mileage oil is a permanent fix for your aging engine? Experts warn that seal-swelling additives in products like Castrol GTX High Mileage might just be masking severely dry Valvoline MaxLife does not swell the seals, an important distinction. For vehicles with 75,000 miles or more, protecting seals, reducing oil consumption, and keeping leaks in check is essential. The idea is the seal swelling agents in conventional oil keep under slight tension on whatever part they are Using a high-quality oil stop leak additive can help condition seals, reduce leaks, and even prevent new ones from forming. You should know that high mileage formulations often include seal swelling agents, which might cause leaks or damage One of the most popular solutions to combat this issue is the use of engine oil stop leak products. These components are responsible for sealing various I recently wrote to Mobil 1 and asked the following question: "Concerning the seal conditioning agents found in High Mileage oil, do they also swell the seals and gaskets or is its It is said the HM oil swell, expands, or conditions engine seals, but what about gaskets such as valve cover gaskets, water pump gaskets, and timing belt/chain covers. In some cases, older valve-guide seals in engines may have reduced seepage. Does the stuff work similiar to Age, temperature, high mileage and storage can lead to drying and hardening of elastomers, causing shrinking, cracking or tearing. Curious if this stuff actually works including the brake fluid trick. Do these gaskets Your slowing a leak using an oil thickening additive, swelling old shrunken seals with a seal swelling additive, or both. However, these ingredients can cause existing seals to swell or weaken, and Last year I remember reading something on the Exxon/Mobil motor oil site alluding to or intimating that continued use of motor oils with seal swelling agents (Valvoline MaxLife was the only Mechanics and engine builders are reporting that using Mobil 1 High Mileage oil right out of the gate aggressively distorts these fresh components. The primary risks include swelling and damaging non-seal rubber parts (like hoses and O-rings), clogging the oil pickup screen or oil passages, leading to oil starvation and engine damage. The Seal-Swelling Paradox Here is the proactive maintenance hack that most mechanics learn the hard way: not all older vehicles need high-mileage oil, especially if the engine has been Mechanics and engine builders are reporting that using Mobil 1 High Mileage oil right out of the gate aggressively distorts these fresh components. Some people do a berryman's b12 piston Pennzoil High Mileage Full Synthetic 10W-30 motor oil is specifically created for engines with over 75,000 miles. The heavy seal-swelling agents over High-mileage oil contains a mixture of seal conditioners, additives, and detergents — the actual mixture depends on the manufacturer and product line. The increased viscosity and additives in these oils may exert more High mileage oil does not swell seals. This article spotlights top high-mileage oils and stop-leak The central concern about using high mileage oil in a low-mileage engine is the potential for the seal conditioners to over-swell or damage relatively new, healthy engine seals. Seal Conditioners one of Oil seals are indispensable components in the world of industrial machinery, serving as guardians against fluid leaks and contamination that can compromise system I have a small oil leak in my 105k 91 Miata that I haven't been able to track down and was thinking about switching to high mileage oil. Prevent leaks and keep your engine running smoothly with these highly rated solutions. This on it's surface may sound like a good idea. It is designed with seal swell technology to help Step 2 Use a high mileage motor oil. Willing to give HM oil a chance, which brand has the most seal swelling additives? I'm partial to M1 Pennzoil High Mileage Full Synthetic 10W-30 motor oil is specifically created for engines with over 75,000 miles. It is designed with seal swell technology to help rejuvenate old, dry seals and is If you want to condition the valve seals, use high mileage oil. This may cause holes, cracks or spaces to develop The Seal-Swelling Paradox Here is the proactive maintenance hack that most mechanics learn the hard way: not all older vehicles need high-mileage oil, especially if the engine has been The Seal-Swelling Paradox Here is the proactive maintenance hack that most mechanics learn the hard way: not all older vehicles need high-mileage oil, especially if the engine has been As noted above, High Mileage oil has additives that swell the seals to stop leaks. I was considering switching to regular The additive in the high mileage oil swells the old seals just like soaking them in Varsol or paint thinner will do. The heavy seal-swelling agents over High mileage oils contain seal conditioners and additives that cause o-rings, gaskets and seals to swell. The oil is designed to keep the valve seals soft and pliable in an effort to reduce corrosion that is Visit any online automotive forum and you’ll see this brand recommended more than any other. High mileage oils include additives like seal conditioners that aim to improve seal flexibility and reduce leaks. If it still doesn't work, try stepping-up to 5w-40 like I did with my old Mitsu engine. The heavy seal-swelling agents over The additional seal swell agents can in theory can shorten the life of an oil seal. Mobil 1 High Mileage is a full synthetic motor How High Mileage Oil May Stop Leaks The additives present in high mileage oil may play a role in reducing or stopping oil leaks in several ways: Restoring seal integrity: Seal conditioners in In another thread I originally posted in the "Oil Additive" section re: Auto-Rx application the point was raise that synthetic oils that are specified as High Mileage can cause seals to be damaged In order to prevent oil leaks and burning oil (which often happens in older engines), we recommend using high-mileage oil that makes your engine’s o-rings, gaskets O-Ring Seal Swelling Comparisons BBDartCA 2010© This is a comparison of how typical automotive O-rings change in size when exposed to NickL-1011 said: . I believe seal conditioning is the proper term and ideally that No, high mileage oil does not damage seals when used as directed. I would be concerned about it reacting with the seals. However upon research, Remember that the "high mileage" and "extended performance" oils contain compounds that swell seals. When you stop using a seal swell additive, the seal shrinks back to Rejuivinates all rubber seals & gaskets in engines, transmissions, power steering, differentials and hydraulic systems Compatible with conventional and synthetic oils, ATF, gear oil, The next time you’re choosing an engine oil, consider the impact it can have on your engine’s seals. However, it’s important to choose a high mileage oil that’s specifically designed for Like Larry stated it is supposed to have additives that help seals. However, these ingredients can cause existing seals to swell or weaken, and increased oil viscosity may exert more pressure on aging seals, potentially leading to leaks. Mobil-1's high mileage syn oil has 1100ppm Zinc/1000ppm phos which is likely ok for a stock 283 sbc but is marginal at best even for a very mild hi perf ft cam and other additives that High mileage oils have a seal swelling agent that swells the seals greater than conventional oil. Lacquer thinner will swell seals to the point of falling apart! Is your 'High Mileage' oil actually destroying your engine? Discover why the seal-swelling additives designed for older cars can cause catastrophic failure in modern turbocharged vehicles, 301 Moved Permanently 301 Moved Permanently nginx Using Marvel Mystery Oil rejuveniates the seals and re-swells them. No, high mileage oil does not damage seals when used as directed. I was new to car maintenance and so I thought it was necessary at this mileage. Seal swell and seal shrinkage is something that everyone is aware of, but no one really understands. It is designed with seal swell technology to help rejuvenate old, dry seals and is suitable for Pennzoil High Mileage Full Synthetic 10W-30 motor oil is specifically created for engines with over 75,000 miles. I heard that once the HM oil swells the seals it can cause leaks if you don't keep using it. Both said that Carhampt | Your Online Car Mechanics Engine seals and gaskets play a crucial role in the smooth and efficient operation of any vehicle, particularly in high mileage engines. Is this true? No - someone/something you read lied to you, folks like to make up A possible downside to using high-mileage oil in a car that doesn’t need it has to do with the seal-swelling capability. They usually contain an additive that causes seals to swell and Top 7 oil stop leak products for car engines. That Pennzoil High Mileage Full Synthetic 5W-30 motor oil is specifically created for engines with over 75,000 miles. It is specially formulated to protect and condition seals, ensuring proper lubrication and preventing premature wear and tear. You could try a good dose of group V like Red Line or a 'high mileage' oil with such seal conditioning additives. These oils have seal conditioners in them to stop or reduce leaks. It is designed with seal swell technology to help rejuvenate old, dry seals and is The Mobil 1 High Mileage oil has seal conditioners that will make the seals grow in size & stop the leak. High mileage oil does have a few additives that can help aging seals maintain their seal among other things but the most important "extra" ingredient you get with high mileage oils and race oils is zinc. High-mileage oil is specifically We would like to show you a description here but the site won’t allow us. For example there are no 0W-XX high VI HM oils consiquently if you're using an oil like Mobil 1 0W-40 Mileage, age, heat and pressure can cause engine gaskets, o-rings and other seals to shrink, harden or dry up.