Skip the auto shop - Our mechanics make house calls

Q: Using fuel and oil additives in high-mileage vehicles

asked by on

Questions on fuel and oil additives. What are they and should you use them on the high-mileage vehicles? Is the car addicted to them once you use them?

People have been selling fuel and oil additives for years. If you drive a normal car, you take care of it and use high-quality fuel, and you change your oil a lot, you really don’t need to do anything except that.

But, say you have a junk that burns a lot of oil, or it has gas problems, or not running right because the fuel injectors are clogged, then yes, you can put a good fuel injector cleaner in, and you can put a good oil additive in.

Personally, I like Lucas oil additive. I’ve put it in customers’ cars that would burn three or four quarts of oil, between oil changing, but then I put Lucas in and they only go through maybe three quarters of a quart instead of three quarts and they didn’t have to add any until it was time to change the oil. So, there are times to use it. Cars can’t get addicted to them, but if you’ve got a nice new car that runs good, you are wasting your money throwing it in, because it doesn’t need that stuff right away.

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: Engine won't run - 2002 Ford Explorer

Hi and thanks for contacting YourMechanic. When verifying that the engine will not run, check the three elements of combustion. Check for air, spark, and fuel. If the engine is getting proper amounts of air and the filter is...

Q: Can grease viscosity lead to engine failure?

Assuming you are referring to the engine motor oil, this is not likely something that would cause an engine to fail instantly. As you may know, the motor oil is what lubricates all of the moving parts inside your engine....

Q: My car jerks when decelerating or cruising in slow speed.

Hey there. This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...