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 1,000 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
  1. Home
  2. Questions
  3. What are the differences with synthetic blend oil?

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: Q: Burning oil

Broadly, if oil consumption exceeds 1 quart for every 1,000 to 2,000 miles that's when we start to refer to oil consumption as "excessive". Ideally, consumption should not exceed 1 quart in 4,000 miles or more. On your vehicle, before...

Q: I smell something burning and my oil pressure light is on. What's wrong?

This sounds like you are having three different problems: The engine had burned oil and you changed it and now the oil light is on. The transmission slips and then catches. The last thing you mention the...

Q: My gas mileage dropped after an oil change.

If you were using one type of oil and then replaced with a different oil that does not meed specifications of the motor by being too thick then it would affect fuel mileage by maybe 1 mpg. If you are...

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...
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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...