So I drive my car very little. I am talking prolly around 3-5k a year. I own a 2008 acura tl type s. I changed my oil about a month and a half ago and prolly put on about 500 miles at most. Oil life is down to 90%. This is fine i am just curious does it go by time or mileage?

 

It goes by time, mileage, rpms, cold starts, operating temps, etc, etc. Many parameters.

I wouldn't worry about it dropping to 90%.

As a matter of fact, if 10% = 500 miles, then 100% = 5,000 miles, which sounds about right to me.

BTW - your Owners Manual, iirc, say change the oil and filter at least once per year regardless of mileage/MID.

 

Yep,thanks i was just curious. I dont drive over the milage but i chage it about every 10 months.