Does High Mileage Oil Make A Difference?

Can I mix high mileage oil with regular oil?

Mixing Motor Oil According to Mobil Oil, it should be fine to mix oils.

So, if you are low on oil, don’t be afraid to add a quart or two of synthetic oil if you are using regular oil or even regular oil if you are using a synthetic..

Is high mileage oil worth it Car Talk?

As long as it’s the correct viscocity, it won’t hurt anything. There’s really nothing wrong with leaving the high mileage version in the motor. Basically, it has some additives to help older motors run longer.

Can I stop using high mileage oil?

Yes, you can switch to using a synthetic motor oil. … High mileage oil has a component or two that can help, but it’s mostly marketing. Switching to a full synthetic it will do better than with a mineral oil.

Is Valvoline High Mileage Oil good?

5.0 out of 5 stars A+++++++++ Best High Mileage oil I have tried. I am a career mechanic that has tried about every oil out there. If your engine leaks a little this just might stop it completely. Seems to be a better stop leak than any other brand of “high mileage” oil.

Which synthetic oil is best for high mileage?

Pennzoil Platinum High Mileage Full Synthetic Motor Oil. … Castrol EDGE High Mileage Full Synthetic Motor Oil. Valvoline Full Synthetic High Mileage Motor Oil. Royal Purple HMX High Mileage Synthetic Motor Oil. Shell Rotella T6 Full Synthetic Diesel Engine Oil. Mag 1 Full Synthetic Motor Oil.More items…•

Should I use high mileage oil or synthetic?

High mileage oil Such oil features additives that help protect seals. … As a rule of thumb, most new cars require synthetic oil. Older cars generally run well with conventional oil, unless your vehicle has more than 75,000 miles on it, in which case high-mileage oil is recommended.

Is high mileage oil bad?

High-mileage motor oil doesn’t hurt and it could prevent leaks from starting. Most vehicle manufacturers would say it’s normal for an engine to consume some oil between oil changes.

How often should you change high mileage oil?

The quick-lube chains usually recommend it be done every three months or 3,000 miles, but many mechanics would tell you that such frequent changes are overkill. Indeed, most car owner’s manuals recommend changing out the oil less frequently, usually after 5,000 or 7,500 miles.

Does high mileage oil help with leaks?

Additives in certain high mileage oils can help protect worn seals and keep leaks from forming. Older vehicles tend to burn more oil and the lower volatility of Mobil 1 High Mileage helps reduce oil loss caused by burn-off, particularly on cylinder walls due to leakage past the oil control ring.

Is it OK to mix 5w30 with 10w30?

Yes, if topping up. If your oil must be topped up, then you are burning oil already, so the difference won’t cause more damage than is already there. 5W30 and 10W30 are essentially the same at operating temperature. It is only for cold weather starting that the performance will be different.

How is high mileage oil different?

High-mileage oils have ingredients to take care of older engines, like conditioners, seal swells, antioxidants, detergents and wear or friction additives. Typically they use a viscosity modifier that is durable and won’t lose viscosity very easily. These oils need to stay thicker longer to protect engine parts.

What’s considered high mileage for oil?

Some people might consider switching to a high mileage oil at 200,000 miles, while others may want to change to a high mileage oil at 80,000 miles. For the average driver, anything over 100,000 miles could safely be considered a high mileage vehicle.

Is high mileage oil thicker?

A high mileage engine may benefit from a thicker oil but be cautious about using an oil too thick in cold weather as it will take longer for the oil pump to get it to the critical parts such as bearings and cam surfaces. … If the oil pressure is the same as when the vehicle was new, don’t change the oil viscosity.

What is the best high mileage oil?

The Best High Mileage OilValvoline High Mileage Motor Oil. … Castrol GTX High Mileage Synthetic Motor Oil. … Mobil 1 High Mileage 5W-30 Motor Oil. … Pennzoil High Mileage Oil. … Castrol High Mileage Advanced Full Synthetic Motor Oil. … Royal Purple High-Mileage Synthetic Motor Oil. … AmazonBasics High Mileage Motor Oil. … Mobil 1 High Mileage 5W-20 Motor Oil.