Check engine light from too low octane gas?
Can lower than spec'd octane gas in a car cause the CEL to come on? I put some brand-x 89 in a car that takes 91. CEL came on, though it drove fine. I balanced the mix with some 93 and soon after the CEL went back out.
Last edited by Crypty; 12-21-2012 at 04:44 PM.