Originally Posted By: 3putter
Well, here's my .02 worth. M1 has been around for 30+ years with an unblemished track record. It's been proven time and time again in the world's toughest applications. Even NASA uses it. They are on the cutting edge of lubricant research and development, and set the standard for everyone else to live up to. For my money, why use anything else? I know that's all my Corvette will ever see.
This is a point that's very hard to disagree with. From the mid-1980s until I discovered GC in 04, I was an unbending adherent to the M1 faith. Now, though I still have a good bit of green GC on hand, I'm almost out of uses for it (the Prius, pressure washer, generator, etc...). I'm probably headed back to M1 myself. It's the only OTC 0w-20 so far, meaning I can get it right at Walmart or AZ (and won't end up embroiled in a silly [censored] contest about shipping cost...
). Other than these odd recurrent iron questions, which I'm convinced are meaningless, M1 has been a long-time, consistent performer. To borrow one of my favorite Terminator lines, "I'll be back."
If and when CE appears in a 0w-20, for $1.50 less per quart, I might consider it...