At first i was getting 50 miles per 10 dollars (about 3 gals.) so i decided to do a tune up

- tune up,
1.changes the spark -ngk (copper)
2.Change air filter (autozone brand)
3.change fuel filter (autozone brand)
4.clean TB with deep creep
5.added air to tire (i was at 15 psi ...lol)
6. Techron Fuel injector cleaner (the large bottle)
7. And finally the seafoam clean (again)
8.change oil

so after all of this work i am now getting 27 miles per 10 dollars ......

my cel was NOT on but i checked it any way... and i got 0901/1001
i know wat the codes means....so isn't the o2 sensors suppose to trigger the cel?
i was wondering if the techron could of damage both sensors because i drove it on an empty tank..or could it be bad spark plugs?
does the O2 sensors affect the gas mpg or proformace the car has 72k miles, anywhere i can get good o2 sensors @ a good price ?
thanks

 

Wow that's a big drop. Did you gap the plugs correctly? (0.044) Tighten every thing right? And yes O2 sensors do affect mileage greatly.

 

thanks for the input

 

NP, I feel your pain, gas is way too high right now.