Originally Posted By: CharlieJ
Isn't there a guy on here that says he uses M1 15w-50 in all his vehicles and has like over 200k miles on each of them?
That would be me. I put M1 15W-50 in my wife's Cavalier the day it came home from the dealer in December of 1998. It now has 209,XXX miles, is daily driven. I put M1 15W-50 in my 1986 Toyota with the 2.4L I4 engine at 40,000 miles. It now has 301,000 miles and is still in use, hard use. If we go back to 1990, when I started to use M1 15W-50, and nothing else, in every vehicle that me, my wife, my two daughter and their husbands have, or have had, we average 198,xxx miles per vehicle, with 3 of them over 200,000 and another that will likely go over 200,000 in the next month. There was in this group a 1.5l Kia, a 1.5L Mitsubishi, and a 1.8L Aveo. We have just over 2,000,000 miles since 1990, if you let me count the Toyota.