need a little help here. i am starting to experience a slight ping with my 99 ls1. its not real bad, but i can notice it at low to mid rpm's. any help as to where to begin would be appreciated. i use 93 fuel. water level if fine. engine is a little sluggish, but not real bad. please let me know what ya think. thanks....john

 

i have been having a slight ping to my engine. have checked everything. then i started thinking....this didnt start till a few weeks back when this little fuel crunch started. curious if oil co.'s have cut a corner or two with the octane additives. any one else had a problem? going to try a octane booster to see if it changes any. any suggestions on a quality boost or is it just a waste of money???

 

Torco is the only one that is worth the money.
http://www.torcoracefuels.com/catalo...products_id=28

 

i agree with him. thats what i have used on my other cars