I have been getting poor gas mileage recently in my car. I just replaced plugs with ngk coppers, installed a k&n panel filter, new fuel filter, and the throttle body was cleaned 7k miles ago. I used to get 23-25 but now am getting around 20.

The only two things that I have noticed is when I get to a quarter of a tank, my car sometimes stalls when I accelerate. It's not out of gas because it takes the normal amount in relation to the guage. Also, when I replaced the plugs and reset my ecu, it had a stored code for the front o2 sensor. Two months ago I replaced my ECTS and reset the ecu, so that o2 sensor code had to have been stored since then.

I have read that some people put in fuel system cleaners such as techron. Does anyone recommend using these cleaners? I have always thought they are a waist of money. Any thoughts? Thanks

 

i've never used it, but my cousin in law, car doctor says that they are not worth the money.

 

It doesn't harm to drop in one bottle of Techron. I noticed some difference in mileage after adding one bottle right after oil change twice and I see a +3 mpg improvement. (with A/C on)

 

try some BG 44k .. same formula the dealers use in thier fuel induction service, the can is prob. costly but it makes a world of a difference in performance night and day

 

No harm No foul. Try it out!

 

i used it once i colud tell the diffrence lol...