how can i improve my g35's bad gas mileage???
#1
#2
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dwaller2317 (05-05-2014)
#3
as well, run a can of seafoam thru the gastank with a full tank and run a half can thru the vaccum line from the brakebooster, then run rest of the half can through the gas one more time, but with only like a gallon of gas... go to E, toss in can, then toss in a gallon of gas. the more concentrated blend should get rid of whatever is left in your fuel rails.
#5
not all that much you can do.. maybe change out the spark plugs, run some Seafoam through it.. get a tune to lean out the a/f mixture a bit so that its not running factory rich... I think i read on here somewhere a member mentioning they got 27mpg highway on the way back after getting a tune...
these engines suck a lot of gas.. its a heavy car.. speaking of which, you can lighten up the car also.. lighter wheels, lighter exhaust, maybe even new front seats.. lessening your unsprung mass which include wheels (as i mentioned), a lighter brake kit etc.
lighter pulleys should help also... but dont do underdrive pulleys, stick with stock size..
think thats really about it? unless anyone else wants to chime in...
these engines suck a lot of gas.. its a heavy car.. speaking of which, you can lighten up the car also.. lighter wheels, lighter exhaust, maybe even new front seats.. lessening your unsprung mass which include wheels (as i mentioned), a lighter brake kit etc.
lighter pulleys should help also... but dont do underdrive pulleys, stick with stock size..
think thats really about it? unless anyone else wants to chime in...
#6
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Blue Dream (06-18-2011)
#9
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I have been reading up on this subject too. I average about 19.9 miles per gallon. I DID drive slower on the freeway (around 64mph) and I sht you not.. I was getting 27.3 miles a gallon. Keep in mind, I felt like I was going to have a panic attack and I swear my nose was about to bleed.... I don't know if I will try that again.
#10
if you have a lot of build up in your fuelrails/injectors and the upper part of your engine which running seafoam would get to by running through the vaccum might give you a little bit of hp... nothing HUGE. so dont expect anything imo. but the ecu reset will "free up" hp. the ecu of our car conforms to the way the driver drives it. if you drive it hard from the time you reset it, the ecu will keep that setting, which = bad gas mileage but lets u use all the available hp. but if you drive it like a granny, tryin to get good gas mileage, it will give you better mpg but wont let you dip into all the horsepower... ive read on here that the ecu will reserve up to 25-30hp when you drive like a granny... if i recall
#11
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if you have a lot of build up in your fuelrails/injectors and the upper part of your engine which running seafoam would get to by running through the vaccum might give you a little bit of hp... nothing HUGE. so dont expect anything imo. but the ecu reset will "free up" hp. the ecu of our car conforms to the way the driver drives it. if you drive it hard from the time you reset it, the ecu will keep that setting, which = bad gas mileage but lets u use all the available hp. but if you drive it like a granny, tryin to get good gas mileage, it will give you better mpg but wont let you dip into all the horsepower... ive read on here that the ecu will reserve up to 25-30hp when you drive like a granny... if i recall
#12
Do more highway driving
I also always thought my 06 G35x got bad mileage but shops and the dealer said everything about the car is fine.
My previous maximum was all city driving - 475km on one tank. Now my situation changed a bit where I barely drive in the city and do highway driving to visit home from university. I easily achieve 575km now, an extra 100 clicks!
I also always thought my 06 G35x got bad mileage but shops and the dealer said everything about the car is fine.
My previous maximum was all city driving - 475km on one tank. Now my situation changed a bit where I barely drive in the city and do highway driving to visit home from university. I easily achieve 575km now, an extra 100 clicks!
#13
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GXXXV X (06-24-2011)
#14
You can do all the above mentioned tricks but what you need to do is stop listening to your exhaust while driving and use your cruise control when ever possible. A steady speed at what ever the limit is will give you the best results....our Infinities are not known for gas mileage!
Gary
Gary
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GXXXV X (06-24-2011)