Skip the auto shop - Our mechanics make house calls

Q: can i switch between syn-blend oil & regular oil when i change it ?

asked by on

as above ^

My car has 95000 miles.
My car has an automatic transmission.

A: According to Pennzoil, synthetic (including...

According to Pennzoil, synthetic (including blends) and regular oil are completely interchangeable and thus there is no restriction on "switching" back and forth at any time. The main thing of concern with engine oils is that you are using the right viscosity and an oil that has the approved API certification for your vehicle. Fully synthetic oils are preferred of course and have better characteristics all around.

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・Save up to 30%

Get a quote

What others are asking

Q: Dealership left oil cap off after oil change.

I would not assume anything. Have them detail the engine good and clean any oil up. Do a completely new oil and filter change and make sure the cap is installed properly. If you would rather have another mechanic take...

Q: How do I use the automatic climate control?

The automatic climate control feature helps keep you comfortable inside your vehicle. After you input the temperature, the system will automatically adjust the fans and the input mode to keep the cabin at your set temperature. To use the automatic...

Q: Truck not starting after oil change

From the description provided, it seems that your son is experiencing a hard start condition on the Ford Ranger. The symptoms you describe can be duplicated by many different faulty components. These include parts such as a faulty fuel pressure...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...