Fuel economy on 02 Tacoma - why is it going south

Typically I get 100 mpg per quarter tank (400 miles total). Since about December I get about 70 or less???

I am getting an oil change tomorrow, but what gives with the fuel economy ? Any ideas, appreciated.

 

could just be winter gas, but you may be due a new fuel filter, also check your tire pressure, etc.! first things that came to mind.

 

My bet would also be winter gas for a first guess. Between the lower energy fuel and the longer warm up time I lose 2.5 to 3 MPG.

 

tire pressures is a big one in the winter to watch out for. it sneaks up on ya

 

definitely!!