How Many Miles Can You Go On Full Synthetic Oil?

by | Last updated on January 24, 2024

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It used to be normal to change the oil every 3,000 miles, but with modern lubricants most engines today have recommended oil change intervals of 5,000 to 7,500 miles. Moreover, if your car's engine requires full-synthetic , it might go as far as

15,000 miles

between services!

Can I really go 10000 miles between oil changes?

Many automakers have oil-change intervals at 7,500 or even 10,000 miles and 6 or

12 months

for time. … Even if you drive fewer miles each year than your automaker suggests changing the oil (say, 6,000 miles, with suggested oil-change intervals at 7,500 miles), you should still be getting that oil changed twice a year.

Can you go 10000 miles with synthetic oil?


Full synthetic oils will actually last well beyond 10,000 miles

. The lifespan of depends, but it's not crazy to see oils still working at 15,000 miles or longer. … Our standard recommendation is 7,500 miles for a normal vehicle based on the thousands of engine repairs we've seen over the years.

What happens if you don't change your oil for 10000 miles?


Complete Engine Failure

– If you go long enough without an oil change, it could cost you a car. Once the motor oil becomes sludge, it no longer removes heat from the engine. This can lead to a complete engine shutdown that will require a brand new engine – or a new ride – to fix.

Is synthetic oil bad for high mileage engines?

Myth:

Full synthetic oil is not good for high mileage

cars or older vehicles. The myth is rooted in the idea that synthetic oil is “slipperier”—lower in viscosity, or not as compatible with seals and will therefore leak or leak more in places conventional oil might not. Again, completely untrue.

What happens if you go too long without an oil change?

Go long enough without an oil change, and it could eventually cost you your car. Once

motor oil becomes sludge

, it no longer draws heat from the engine. The engine might overheat and either blow a gasket or seize up. … If the heat doesn't cause a gasket to blow, it will warp the parts in your engine.

Is it bad to go 7000 miles without an oil change?

Adams –like many independent shops these days — suggests most customers change their

oil every 5 to 7,000 miles

, even if the dashboard computer isn't ready yet. Consumer Reports Magazine recommends 7,500 miles for most cars now.

Whats the longest you can go without an oil change?

Cars can generally go

5,000 to 7,500 miles

before needing an oil change. Furthermore, if your vehicle uses synthetic oil, you can drive 10,000 or even 15,000 miles between .

Should you change your oil every 3 months?

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.

Is it OK to change oil once a year?

For those who drive only 6,000 miles or less per year, Calkins said manufacturers typically recommend changing the oil

once a year

. Moisture and other contaminants can build up in the oil, especially with frequent cold starts and short trips, so owners shouldn't let it go more than a year.

What are the disadvantages of synthetic oil?

Probably the most glaring downside of synthetic oil is

the cost

. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.

What is the best synthetic oil for high mileage cars?

  • #1 – Mobile 1 High Mileage Synthetic Oil.
  • #2 – Royal Purple HMX Synthetic Oil.
  • #3 – Mobile Super High Mileage Synthetic Oil.
  • #4 – Castrol GTX High Mileage Synthetic Blend Oil.
  • #5 – Pennzoil High Mileage Synthetic Blend Motor Oil.

Which oil is best for high mileage engines?

  • Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil. …
  • Pennzoil High Mileage Motor Oil. …
  • Slick 50 Recharged High Mileage Treatment. …
  • Gumout Fuel System Cleaner. …
  • Royal Purple High Mileage Synthetic. …
  • Techron Fuel Cleaner. …
  • Mobil Super High Mileage Oil.

Does oil go bad sitting in an engine?

A short answer to this question is yes. Motor oil can only last for a certain period of time. … For this reason,

oil goes bad with time just by sitting in the engine

. Over time, it becomes less viscous thus less efficient in maintaining proper lubrication between moving components.

Can I just add oil to my car instead of getting an oil change?

Adding oil instead of an oil change at this point could

cause engine issues

. This used oil needs to be removed to allow new oil to lubricate your engine's parts. PRO TIP Drop a drop of the used oil on the surface of water. New oil will bead up due to interfacial tension.

What does your car sound like when it needs an oil change?

When the oil becomes thin, old, or poorly textured, you might hear the issue every time you drive. When driving with bad oil quality, your engine may make

a knocking sound

while the vehicle is in motion. Oil issues can also cause other noises, like ticking, which we'll discuss in the last section.

David Evans
Author
David Evans
David is a seasoned automotive enthusiast. He is a graduate of Mechanical Engineering and has a passion for all things related to cars and vehicles. With his extensive knowledge of cars and other vehicles, David is an authority in the industry.