Quote Originally Posted by nfpgasmask View Post
So, around the beginning of October, it seems my VX's gas mileage took a turn for the worse. Now, I could blame it all on winter blend fuel (ethanol) but it just seems to drastic, imo.

I always, always reset my tripometer when I fill up. And typically, I would get about 240 miles per tank. This was normal for me with the lift and roof rack, etc. But now my VX is right about 112,000 miles old, and I am getting about 190 miles or less per tank.

I'm still burning oil, no more or no less than "normal" and I am not feeling any performance loss or getting any CELs. The only thing different, is my VX doesn't like to start up like she used to. Normally, I would turn the key and vroom. Instantly my VX would fire up. Now, she labors a little on start up, a little skipping and then she runs smooth and normal. I recently got an alignment and my tire pressure is good. I will be needing new tires sometime soon but they are really ok for now.

So, what do you all think? I am thinking about changing the O2 sensors, possibly installing a new CAT, cleaning/changing my EGR and injectors. But with no CEL codes coming up, I feel like I could just be grasping at straws.
My buddy's 2000 Trooper has recently dropped drastically in mpg also. I suggest pretty much the same things you have, but it is difficult to pin one thing down.

10% ethanol will drop gas mileage slightly, but not like you are reporting. An we have ethanol year round, here, so that doesn't explain my buddy's Trooper.