Skip the auto shop - Our mechanics make house calls

Q: Oil leak

asked by on

My car is leaking oil not a lot but it still leaks I use 10W30 synthetic oil in my car if I were to switch to conventional oil would it still leak as bad

My car has 140000 miles.
My car has an automatic transmission.

Hi there. Believe it or not, changing from synthetic to conventional could increase the leak. Although the viscosity of oil is similar in 10W30, synthetic oil tends to be a bit thicker in general. Plus, if you use synthetic, you’d want to progressively switch; go to a blend, then full conventional after a few oil changes. The best suggestion is to contact one of our local mechanics who can find and repair the source of your oil leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Gauges

Hi There, It sounds like the quickest and best way to tell whether you have internal component failures or if your gauge cluster has failed might be to check the temperature of the motor by the use of an infrared...

Q: Engine makes noise when shifting

This noise is likely coming from the transmission or torque converter between the engine and transmission. When the transmission is in park or neutral the torque converter is not engaged therefore the engine and transmission are technically separated internally. I...

Q: My car stopped working while driving and fluid went everywhere

This is an indication that you have a major water leak or potentially a blown head gasket which is signified by the smoke and sluggish acceleration. This can happen when the car overheats and the cylinder head gasket is compromised....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...