I'm new to Taco's and 4 bangers. I have a 2010 Extended cab 2WD 2.7L auto transmission with 44K miles. The truck had been setting since April of this year until I bought it the first week of October. There was some gas in the tank which was at least 6 months old so I added some fuel cleaner and filled it with fresh gas. My first tank with mixed city/highway driving was 18.6. I just replaced all filters and Mobil One 00/30W and 235 75 15 Geolanders. Maybe the next tank of clean fresh fuel will be better, any suggestions?