all. I was for some reason thinking Mobil 1's "extended mileage" marketing had to do with it being somehow *specially formulated* for a high mileage engine. I doubt the Mobil 1 10W-30 synthetic I was using 8 years ago has changed very much from what you buy off the shelf today. *shrug*
Z-Jay Vice President - Edmonton Z Car Club 93 300ZX TT - Stage VI