Anyone else have this problem? I normally get about 250-260 miles per full tank of gas before i have to pump... in the last two months it's gotten progressively worse... i now get about 220-230 miles... my driving style hasn't changed and the places i go are still about the same... i still use the same gas... not sure what's going on.

 

it looks like you have about a 12 percent in change:

temperature effects mileage 2-3 months ago i would assume tempatures were different. so the car would run slightly less efficent in summer than winter regardless if the ac was on or not. and if it was on more.... then definitely.

the on board computer measures the amount of gas versus travel to give you the MPG reading. so when you're idling more than usual dont expect the gas consumption to stop.

2-3 months ago your air filter and oil were both cleaner i assume

weight in trunk/ amount of passengers u usually carry

i had gas mileage questions a couple of weeks ago and i couldn't find out the problem... i took it to lexus and they ran a fuel consumption test for me.

 

What did Lexus say the problem was?

 

another could be constructions causing more traffic, creating more stop and go.

 

was it something they were able to fix?

 

it wasnt a problem... it was the thing they explained with the temperature getting hotter, the ac and me always keeping my car running.