I'd start with a tune up first. Plugs, wires cap and rotor. My fuel mileage was poo and I replaced my two upstream o2 sensors and have fixed my problem.

No check engine light.  It isn't a problem where I've been noticing a drop-off over time, it just began within my last fill up.  I'll start with your two suggestions, thanks!

Could be a bad tank of gas if thats the case.

lol, maybe, but she's garaged under lock and key so I think I'm safe on that one.


This one I don't like.  I got a new oil leak that appears the be the source of the smell.  I'll take care of that whenever I can.


Yes I wondered that right off the bat as well, but I've never experienced these symptoms before, think this is actually a viable source of the problem?  I might just use it up today and start with a fresh tank before doing anything.

hey i had the same problem, cept it was my fault..make sure the screws holding down ur intake manifolds are tight..other wise ur fuel level will drop faster than ur rpm when u take ur foot off the pedal

No, I just plain old tightened them. after that, my fuel mileage returned to normal, now one of my cylinders is misfiring..dont know which one..have to get it checked out.