Quote:
Originally Posted by JTruckenbrod
This is the first car that I have owned that tells me what % life my oil is at. I just hit 3000 miles on my car and it is still showing greater than 40% oil life.
Here's the question: Do you change your oil based on what the car is telling you % wise or just go by the mileage, IE every 3k, 5k, etc. miles?
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I go by the oil life monitor. I figure that's why GM put it there. I had a Grand Am that I always changed the oil when the "Change Oil" light came on. It sometimes would go as long as 15k before it asked for an oil change. It never used any oil and never had any engine problems. I sold it a couple of years ago with 212k on the odometer. I still see it on the road daily. I'm a believer.
I've heard that some of the V6s have timing chain issues. I'm not sure if these problems are oil related or not, but if I had one and thought they were oil related, I might consider more frequent oil changes.
I think by now all the lifter and piston ring problems that come with AFM are well documented, so if I had a L99, I'd be changing my oil at 3k or less. I don't think that will keep the AFM from taking out the rings, but it might delay it for a while.
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