Skip the auto shop - Our mechanics make house calls

Q: Will it be okay if I switched my oil from synthetic to blended?

asked by on

My only concern is how it'll affect the engine

A: The effect on engine wear, efficiency of op...

The effect on engine wear, efficiency of operation, and service life (i.e., engine service life) due to a switch to a blended synthetic oil from a full synthetic oil is probably not even "measurable". Full synthetics will be less subject to degradation and evaporation during the oil service interval, though. But, you would need complex test instruments to even pick up the difference; it is that small. And, even if there is a "difference", whether the differences are meaningful or not, in terms of engine life, is yet another matter. If your Owner’s Manual recommends "synthetic oil", and uses that term alone (i.e., does not refer to "blends") I would recommend you use "100% synthetic oil" and not a blend. If it were my car I would use the most expensive, highest rated synthetic oil I could find. Oil does make a difference and even more important, drain intervals make a difference. Changing your oil removes dirt and contaminants and newer cars with all sort of oil actuated mechanisms, such as variable valve timing, need CLEAN oil. YourMechanic offers oil and filter changes during mobile visits and you should certainly avail yourself of that service as the cost is lower and the service is much more personalized. If you have additional concerns, don’t hesitate to re-contact us.

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: Oil leaks

Depending on the severity of the leak and where it is coming from, it may or may not be safe to drive. If the leak is leaking at a steady rate and losing oil quickly, this may be unsafe to...

Q: Does the water pump need to be replaced if the water pump belt is showing signs of wear? Or just the belt?

Hi, thanks for writing in. There is no reason to replace the water pump every time the belt is changed, unless the pump itself is damaged or not working properly. The belt may show signs of wear which is fairly...

Q: Major oil leak

You may have an oil filter seal leaking and should check the filter to see if it is loose or leaking. If the filter is not leaking then the front crankcase seal is leaking and will need to have a...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.