hey all.. What the heck is wrong with my car? Just for the heck of it I wanted to try 89 octane on my car after running 91 octane nonstop since last year... The first time I stepped on the gas, a bad, bad miss started happening. I mean I'd be cruising, and my tach would register a 1,500 RPM loss every few seconds!! It's like losing 2 cylinders. So I quickly ran that tank out, put 91 octane back in with 12 ounces of Marvel Mystery, and bam, the miss is completely GONE and the car runs perfect.
What might that be indicative of? Fouled plugs? I'll check them tomororw
What might that be indicative of? Fouled plugs? I'll check them tomororw