Hi all,
I'm thinking of switching from dino to synthetic in my mother's 2000 Grand Prix with 60,000 miles on it. (3.1L V6) The car was bought brand new and has always had 3,000 mile changes with regular dino oil.
I have also been using Mobil-1 in my 2000 Sonoma (2.2L 4-cyl) for 30,000 miles on 6,000 mile change intervals. It now has 74,000 miles on it.
I also just recently switched over to Mobil-1 in my wife's 2000 Impala (3.4L V6) it has 77,000 on it. I plan on doing the first synthetic change at 3,000 miles and then 6,000 miles ever after.
My question is, is 6,000 miles a reasonable change interval? Or could I possibly get more? I use Wix filters on all of the above cars.
Thanks...
Tony