Q: High mileage and oil grade.

asked by on

I currently use 10W30 in my 99 Acura with over 195,000 miles. Should I start using 10W40 with her at this high of miles?

My car has 195878 miles.
My car has an automatic transmission.

The oil that the manufacturer recommends is 5w30 and it is the only oil that you should use. If you try to use a thicker 10w30 or 10w40 then you may be not lubricating the engine good enough. The thicker oil will not be able to pass through the small passages inside the motor.

Was this answer helpful?
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. High mileage and oil grade.

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: Whirring noise at idle,goes away when I accelerate, removed serpentine belt and still made noise. ...PLEASE LET ME KNOW WHAT IT IS

It might be the idle air control (IAC) valve/motor. Inasmuch as the noise briefly continues after shut down the cause is not mechanical in nature but rather is in an electrical component or something involving movement of air. The noise...

Q: Q: I smell gas in my car! What can that be?

You should have the complete fuel system to include the vapor system checked for any leaks. You may have a leaking seal on top of the fuel tank that is leaking vapor that is getting into the passenger compartment. ...

Q: Extreme negative fuel trims only when coasting, with rpm bounce

Fuel trim is a very valuable diagnostic parameter but to evaluate fuel trim, you generally check at fixed engine speeds namely idle, 1,500 rpm and 2,500 rpm, for about 30 seconds. If the sum of STFT and LTFT is less...

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...
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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...