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Good question. I personally have not seen any evidence to the contrary, so I am going to assume they do, until I see something otherwise. I would imagine that there are probably some additives in the oil to help make seals reguvinate seals and stuff like that. Most people will call snake oil but i have personally seen these oils reduce oil consumption in a vehicle.

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โˆ™ 2009-04-13 03:48:34
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Q: Do High Mileage motor oils really work?
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Best oil for 2005 Toyota solara?

Depends on your mileage really. A full synthetic oil is always best but, if your car is high mileage and has the annoying oil leak syndrome, you may want to go to any of the variety of oils that are sold as 'high mileage' oils. These are oils that are sold for vehicles in excess of 75,000 miles and contain a higher ash content to contain those annoying leaks. Check out Kmart or Walmart and your high mileage oils are clearly marked on the manufactures label...


Are the high mileage motor oils worth the extra money?

Most people are saying that the "high mileage" oils are better for protecting gaskets and seals in your engine. However most recommend only using it if you've noticed soot or dark smoking coming out your exhaust. If the exhaust is clean and you're properly changing your oil regular oil should be fine.


Which type of oil is better for older cars?

There -high mileage- oils that can improve the way your car is run. Some brands that do this are Valvoline and Castrol.


Who makes Blain's Farm and Fleet motor oil?

If it is the conventional oil it REALLY does NOT matter who makes it. Most conventional motor oils are the same. With conventional motor oil just use the recomended viscosity and change it often.


What is the flash point of motor oil?

Motor oil or engine oil is an oil used for lubrication of various internal combustion engines. The main function is to lubricate moving parts; it also cleans, inhibits corrosion, improves sealing, and cools the engine by carrying heat away from moving parts. Motor oils are derived from petroleum-based and non-petroleum-synthesized chemical compounds. Motor oils today are mainly blended by using base oils composed of hydrocarbons, polyalphaolefins (PAO), and polyinternal olefins (PIO), thus organic compounds consisting entirely of carbon and hydrogen. The base oils of some high-performance motor oils contain up to 20 wt.-% of esters.


What motor oil for high mileage jeep Cherokee?

Just a plain multiviscosity oil will be fine as long as you change it every 3000 miles or 6 months along with the filter. I don't personally believe that the "high milage oils" are any better than the rest. I DO absolutely believe that regular lube, oil, and filter changes make a big difference.


What's the difference between motor oil brands?

Motor oils come in different grades. The higher the grade, the better quality the motor oil. Some high end vehicles require better quality motor oil to run at their utmost. Otherwise, any grade will do.


Is it okay to us 10-40 oil in high mileage car?

Depends on what the correct weight was in the beginning. There are high milage oils in most all weights. Try that in the correct weight before moving to a heavier weight.


How used motor oils are cleaned?

They're re-refined.


What are two Pennsylvania motor oils?

Pennzoil and Quaker State


How often is an oil change recommended for most cars?

Conventional motor oils have recommended 3,000-mile drain intervals. Synthetics motor oils have recommend 5,000 - 25,000-mile drain intervals.


What is the gas mileage of the 2001 Chevrolet Silverado?

The Chevrolet Silverado's gas mileage varies from 14 (in cities) to 20 (on the highway) EPA MPG. It is of course possible improve your mileage by, for example, changing oil. Most synthetic oils should help you improve you mileage.


What liquids have a high viscosity?

Oils, syrup, and molasses have a high viscosity.


What type of oil is preferred in a 1998 Cadillac deville?

5w30 motor oil. For high miles car 10w30 is fine. Always use name brand oils, like castrol or penzoil. Never use cheap generic oils in Caddys NORTHSTAR engine.


What is the best type of oil to use in a Jeep Liberty?

Few Years Back A Test Was Given On Top Selling Motor Oils. Castrol Came Out Number One On The Test. I Saw The Results And List Of Oils. The One I Was Using Came In A Close Second. So I Changed To Castrol Motor It Rated Number One. Don`t Want To Down Play Other Motor Oils. There Is A Bunch Of Great Oils That Work To The Extreme But For Me It Is Castrol.


Do you have to use harley motor oil in a harley?

No, but find out the requirements for the motor. Most normal motor oils don't meet manufactures requirements for wear protection.


What are two Motor oils from Pennsylvania?

You might be thinking of Quaker State and Pennzoil.


What motor oils meet Ford specification WSS M2C930 A?

Castrol GTX (conventional motor oil) in all weights meetsford specification WSS-M2C930-A // Castrol GTX High Mileage (premium synthetic blend) exceeds it and meetsWSS-M2C945-A // Castrol Edge With Syntec Power Technology (full synthetic motor oil) meets and exceeds all Ford WSS requirements.Most name brand motor oils, (valvoline, pennzoil, amsoil, royal purple, kendall, quaker state, motorcraft) meet the Ford minimum requirement of WSS-M2C930-A. Most but not all... Ford engineers these engines for a living, I would think they know best. Please consider this as you make your choice in motor oil. If it wasn't important it wouldn't be there.


What kind of oil to use for oil change 1989 Chevy Silverado?

that depends on the mileage of the vehicle. If your Tahoe has over 75,000 miles I would recommend the high mileage oils. The viscosity of the oil will be on the cap. If its under 75,000 miles I would highly recommend a synthetic oil, same goes for the viscosity.


What is the chemical stability means in relation to refrigeration oils?

These oils must resist to high temperatures and to oxidation.


Is high mileage oil better for your car than regular oil?

I assume "High mileage oil" refers to oil that does not need to be changed for a "high mileage". What might be called "long life oil". The point is not that it's better, or worse, for the car. The point is that it lasts longer. This means it does not need to be changed as often. This means the car will use less oil during it's life, generating less toxic waste (Used engine oil is "Very Nasty Stuff"!) to be re-processed. TO sum up, it's not better for the car, but it is better for you, me, everyone else, and the planet we all live on. There are oils that are formulated for high mileage engines.


Does cauliflower contains fat?

Yes, cauliflower contains both fats and oils. It however has a high percentage of oils.


What kind of motor oil does a 2002 Hyundai accent use?

5w30 is preferred especially in colder climates. 10w30 can also be used. For older engines the new high milage oils are helpful.


Can you mix together different motor oils not the same brand?

As long as it is the same grade of motor oil the brand name should not matter.


What is the best oil for 1989 735i BMW 6 cylinder?

High mileage 10w-30, they have additives to help keep seal soft and more detergents to keep carbon build up down than normal oils.