Petey
Well-Known Member
- Thread starter
- #211
The pinging is also a strong function of ambient air temp. In winter here in the North, 87 is fine. But once tbe weather warms up, I switch to 93 to avoid the pinging.
same hereI wanted to chime in here. My Jeep seems much more picky about gasoline than every vehicle I've had since my Chevy S-10. I remember when I bought my S-10 in 1995 they sent out a supplement saying to use 89+ octane fuel for a N/A 4.3L V-6. It ran amazing on Amoco Ultimate (remember the gimmick with the see through gas nozzle with the little ball in it). Ever since I got rid that truck I've always used 87 from any pump available.
On my Jeep, I've been noticing pinging at low RPMs so I've started only using Top Tier gasoline (i.e. Shell) at 87 octane. The pinging at low RPMs seems to have gone away. Unfortunately there are no top tier gasoline stations near me, so I have to make sure to get gas when I'm out running errands. I figure when I do trail rides that I may try 89 octane fuel.
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