Thread: H3 fuel grade question
View Single Post
  #14  
Old 08-25-2005, 07:01 PM
ChevyHighPerformance ChevyHighPerformance is offline
Hummer Professional
  
Join Date: Jul 2005
Posts: 278
ChevyHighPerformance is off the scale
Default
I guess I got a little carried away. 87 is OK. Unlike some of their compeition, GM did a good job with the programming to permit the high compression engine to run on 87 octane without the audible pinging.
Reply With Quote