That was because you bought gas that had more ethanol in it.

 

hell im only gettin 8mpg city and maybe 12mpg hwy.
highway driving also depends alot on the terrain, here in southeast missouri its nothing but hills, up, down, up, down. we also have nothing but curvy roads. i wish i could afford different gears. my truck is constantly shifting on the hwy.

 

If you get the right mods and keep your truck tuned up you can get good mileage out of these trucks. I can get close to 20 on the highway even with the winter gas.

 

20 on the highway!? god damn, im gettin 12.2 now from my overhead, in the summer i was getting 13.4. i thought my mpgs where bad but 9 is terrible. have you reset your overhead recently? i cant wait for the warmer months to see what im really getting with my cai and new tires. btw the cold temps and winter gas sucks!!

 

its weird i get like 18 highway but still get 8 city. If anybody has an Ipod Touch/iPhone look for an app called road trip, I use it to track everything. You enter the odometer mileage, then how many gallons of you get and how much it was per gallon. Basically it keeps track of everything and give you the average mpg you get and also the average cost per gallon and per mile even.

 

Just downloaded it onto my iPhone. Looks pretty cool.

 

yeah man I love it, everytime I get gas I bring it with me and lately I've been watching my fuel economy improve :-D at 9.36 right now lol

 

Yeah, BUT I have to keep it at 65 to get that. Once I go over that it starts to drop off.

 

^ thats the whole key right there, driving habit is the biggest factor i feel. when gas was crazy high i would drive it real easy, barely ever over 2000 rpm, no joke and thats when my mpg was highest, but since gas has dropped off and i got my cai i like to step on it alittle harder

 

That cheap Jersey gas would make me keep my foot in it all the time