Q: Switched to synthetic oil, now I smell burning oil, possibly engine running hotter

asked by on

Got a recent oil change and switched to synthetic oil with my car that has close to 300,000 miles. After a 30-mile drive, smell oil burning but no smoke. I feel the engine running hotter too.

My car has 300000 miles.
My car has a manual transmission.

Hi, thanks for writing in. Synthetic oil is typically a little bit thinner than conventional oil. Often times when a vehicle is switch from conventional to synthetic this can cause oil leaks or burning oil. I would recommend changing your oil back to conventional oil on your next oil change if you are having such issues. I would also recommend using conventional oil from their forward to prevent the symptoms that you are currently having from reappearing in the future. I do not believe any permanent damage was done, however the only way to be sure would be to have your engine inspected by a qualified professional. Here at YourMechanic, we can have a technician come to your home or office to inspect your vehicle for you, and make or suggest the necessary repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Switched to synthetic oil, now I smell burning oil, possibly engine running hotter

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I need a mechanic that specializes in mini coopers

Hi...mechanics are qualified based on vehicle technology and systems, not "models" and so any of the certified mechanics will be able to help you. Hypothetically, even a mechanic who thought he "specialized" in a particular model still must consult and...

Q: Should I sell my car or pay for the repairs?

I would first get a quote for all the repairs needed after a thorough complete inspection of all major systems. Get quotes on all the problems including replacing the transmission and rack and pinion. Once you have a price for...

Q: Smell of burning rubber after I changed the belt

You may have one or more pulley with a bad bearing that is causing the pulley to not turn with the belt, causing the burning of the belt. Have the pulleys monitored while holding the engine at 2500 RPM in...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.