Sudden decrease MPG

I'd be willing to bet you were never really getting 24mpg. I'd be happy with 19. I get about 14 in winter and 17 in summer

 

http://www.thetruthaboutcars.com/2007/12/the-truth-about-adaptive-transmissions/

 

Fluff piece pretty much saying even service techs and manufacturers can't explain much.

My stick adapts immediately.

 

Don't believe the scan gauge. Get out the calculator your phone probably has one and be sure to fill the tank yes top it off. 19 is far more likely mileage

 

^^

http://fueleconomy.gov/feg/bymodel/2008_Toyota_Tacoma.shtml

 

I am being too think that 19 is a more realistic number. At first I thought others were neglecting certain maintenance which would have accounted for my better than average numbers. Eg spark plugs and cables. Note I think it was just a glitch with scan gauge which reset when I had to put a new battery in or out adjusted to the new vehicle somehow. Still strange.

 

I bet its the fuel. Ive noticed a drop in my MPG in clarksville also

 

Winter fuel is about 3% loss.