Skip the auto shop - Our mechanics make house calls

Q: What are the differences with synthetic blend oil?

asked by on

There is conventional oil and synthetic oil. What percent of the benefit of synthetic oil do you get with a 'synthetic blend'? A Ford dealer told me 80% of the gain of going from conventional to synthetic is derived from a synthetic blend which of course is less expensive.

Thanks! Jim

Hello and thank you for contacting YourMechanic. The percentage for synthetic blend oil is between 75% to 85%, depending on the manufacture. There are two types of synthetic oil, Semi-Synthetic and Full Synthetic. Semi-Synthetic is mixed with conventional oil with 75% to 85% of full synthetic oil and 15% to 25% conventional oil. Full Synthetic oil is 95% to 100% oil made from chemicals. Some full synthetic oils may have 5% conventional oils to help with engine wear.

If you plan on performing oil changes every 3 months or 3,000 miles, then conventional oil is recommended. If you plan on going out to 5 months or 5,500 miles, then semi-synthetic is recommended. If you plan on going out to 9 months or 7,500 miles, then full synthetic is recommended.

If you need further assistance with oil analysis or having your oil serviced, then seek out a technician, such as one from Your Mechanic, that can assist you with your vehicle at your home or office.

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

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: How much engine oil do I need for my Vauxhall insigna for a service

Hello thank you for writing in. The engine's oil capacity depends in the size. Most sizes of engine for this make of vehicle take 4.5 quarts of 5w30 motor oil. The type of oil will also depend in if you...

Q: What does it mean if the message center displays a warning saying “Engine oil change soon?”

Your car’s service reminder system is designed to help you remember when you need to have your oil changed. It displays the oil life as a percentage from 0 to 100. If the message center says “Engine oil change soon,”...

Q: 2010 750I bmw leaking oil

There are quite a few oil seals and gaskets on your engine and so the exact source(s) of the leak would have to be pinpointed during an oil leak diagnostic. If you do have oil leaks, as many leaks as...

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 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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.