Filled up last night and saw the best MPG tank since I’ve owned it.
And that’s with a terrible misfire above 3,000 RPM, mostly city driving, and the fact that it is a 169,000 mile 21-year-old 4.3 V6 with the awful fuel injection setup GM somehow thought was a good idea.
Oh, and my AutoZone replacement gas cap is already messed up too. I unscrewed it last night and the rubber seal was sideways under the cap. Cute.