Thanks for your responses, fellas. I called the local Chevy dealer and they have EOS. I'm going to get a case, if they'll let me have it tomorrow.
Rob, just today, I was told by an engineer about the stuff. A taxi operator, who has a a couple of '97 Chevy Impalas, one with over 196,000 miles on it, said he's been using it, too. Don't know if either engine has roller lifters in 'em, but neither has ever had engine trouble.
