Motor has no more than 62k Miles and it's always been maintained and recently, I've been getting horrible gas mileage. About 16-17mpg to be exact. WTF? I use to get 23-24mpg. WTF happened? Maybe my primary o2 sensor is going out? I don't have a cel or anything. No clue, anyone have the same problem?

 

same with me i was goin through a tank a week on a f22. put lucas fuel stuff and now its insane

 

do the normal routine maintainence...plugs/cap/rotor/fuel filter/maybe wires

o2 sensor could be old and on its way out too depending on how old it is.....

 

It's your o2. At least that is part of your problem b/c that is terrible gas milage. I got about 15mpg b4 I changed mine about 2 weeks ago. Sparkplugs.com denso OE.

 

i lied that stuff made my gas gauge get stuck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by themurrell &raquo;</TD></TR><TR><TD CLASS="quote">same with me i was goin through a tank a week on a f22. put lucas fuel stuff and now its insane</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by themurrell &raquo;</TD></TR><TR><TD CLASS="quote">i lied that stuff made my gas gauge get stuck
</TD></TR></TABLE>

any point to your posts?

OP change your O2 sensor, and the normal tune up stuff like someone else mentioned, if it's time.

 

to the OP...

change your pressure fuel regulator...

it happened to me...

 

Same thing happened to my 5th gen higher mileage car. I noticed that I was getting 16-17 mpg even with properly inflated tires as well and new spark plugs and air filter. when i changed the o2 sensor i got better mpg