I last changed the oil in my '99 LX I4 last March. I've since driven about 3,500 miles. When I change the oil I use Castrol GTX 5W30 and a Honda filter with a new crush ring.

It's been 6 months and I'll be changing it soon because it's simple and not expensive (since I do it myself) and I want to do it before the cold of winter, but should I be changing the oil sooner? Say, every three months no matter how few miles I've driven?

For what it's worth, I have a second car that I use as a commuter, I drove about 4,000 miles on that in the same time frame and just changed the oil tonight in that one (Mobil 1, it's a '93 Volvo 940 turbo, I use synthetic in that one because I want to protect the turbo plus it's higher mileage (150,000)).

 

only thing you need to worry about while the car is sitting, is water absorption in the oil....

do it every couple of months if it sits, or use lucas oil stabilizer.

-chris b

 

It's driven pretty much every two or three days, for a little bit (my wife drives it around town or to the stores), so it's not sitting for a long time.

 

then change the oil every 3-5k