Quote Originally Posted by Rickomatic View Post
JMHO, but a 9.XXX compression engine should work fine with 87 octane. It is the other stuff that they add that will help or hurt the performance. I had a 74 Camaro that I drove as a daily driver around 2002 to 2006. It ran fine with the Chevron with Techron with 87 Octane. But if I went to any other fuel, it would ping if it wasn't the 91 octane.

I've had the same experience with Chevron. My Ex wife had a Buick that would only run on premium from Chevron. It would ping like mad on every other brand. I drove it one day and it was pinging and I asked her if she stopped at Chevron. She said no, she didn't feel like driving that far so she got hi test at some other station. As soon as we put Chevron back in it the pinging went away.

Don