nickpls wrote:I let it warm up in the winter for sure, a little bit this time of year too.
Do any mods help with MPG? Intake? Exhaust? I'm going to clean my TB before next fill and see if that helps.
P-metric highway tires. A 245/70/17 Michelin LTX M/S2 (closest to what I had, 245/65/17 LTX M/S) is 35 lbs per tire. An LT265/70R17 E Wrangler Silent Armor (current tire) is 52lbs and 2 inches larger in diameter.
Honestly, I doubt that cleaning it will help much unless you are a hoarder, or you go to extremes and strip the interior down to the body sheet metal (or take out the rear seats).
12MPG is too low.
You can use a Scangauge to measure fuel consumption and then check the miles driven, but trips that short are very sensitive to spikes in instantaneous MPG.
I'd measure with the trip odometer between fill-ups, keep track of them in a spreadsheet and see what happens.
I plotted the trip between Arizona and Ohio when I moved. The lowest MPG were between Amarillo, TX and Joplin, MO.