I was using Costco gasoline (87 octane)... being cheap I know... and heard some knocks/pings on the highway driving at around 70mph in 5th gear (engine under load).
Apparently, either the 4.0L (2003 Wrangler) does not have very good knock sensor or Costco gas is really really bad. My question is how can I check whether any damage has been done and maybe talk to Costco about it?
Thanks.
Apparently, either the 4.0L (2003 Wrangler) does not have very good knock sensor or Costco gas is really really bad. My question is how can I check whether any damage has been done and maybe talk to Costco about it?
Thanks.