Hello, I have a 96 Yukon, and for some reason, it doesn't like anything below 89 Octane (Mid Grade). Even with 89, it occasionally throws on the Service Engine light. I looked in the manual, and it said it's most likely has something to do with emissions. Does anyone know about this problem or have something to try?
Robert
~Robert Brugman~ GPG Key ID: 82506034 GPG Fingerprint: D710 B8D9 C72A AB56 174F 71AC 3619 9F32 8250 6034