Really Bad Gas Mileage
I knew an 06 GC Laredo with a V8 and 4wd would suck gas, but this is far worse than I thought. I'm looking to do everything reasonable to improve this situation. Don't drive a bunch, can live with the problem, but I want to cry watching the gas gauge. Ideas please. About time for new plugs/tune-up. Already did tires. Using thin, synthetic oil (live in Gulf Coast). Drive like an old man most of the time.