
Originally Posted by
2001si3rr@
I'm running Mobil 1 75 90 front and rear for break in purposes, after 1500-2000 miles I'll switch to maybe Lucas or something. The front called for 80-90 sythetic and the rear called for a 75-90 sythetic. I'm one of those guys who likes to use what GM recommends, but they want 34-35 dollars a quart for the Delco synthetic 75-90 for the rear, and 8 or so bucks for the 80-90 synthetic for the front. I can deal with the front stuff, but seriously 34-35 bucks a quart before taxes! They can keep that stuff, and when it goes on sale I'll pick some up.... So I'll break them in with the 75-90 Mobil 1 and go from there.