Gas Mileage
10-09-2001, 07:20 AM
#1
Senior Member
Thread Starter
Join Date: May 2001
Location: Fredericksburg VA
Posts: 363
Gas Mileage
If our cars hold 18.5 gallons of gas and consume an estimated 19 mpg City... Why did my car even barely reach 210 miles on a full tank of gas?
18.5 x 19 = 351.5 miles
Whats gives?
18.5 x 19 = 351.5 miles
Whats gives?
10-09-2001, 08:15 AM
#2
Member
Join Date: Aug 2001
Posts: 42
b/c of this
i dunno why but i figured out i got 16.5 gallons... i had my light on completly for like 20 miles... and filled up.. it 16.26 gallons..And i filled when i had exactly half a tank and it was 8.25 gallons then.. So you have 16.5. And u should try and get a new fuel filter ($6), air filter($15 for a cheap one) and plugs($15-20 at the most) (and all that isn't performance). I did that and my mpg went from about 14 to 18.5.. still need to get some injectors.
10-10-2001, 09:34 AM
#4
Senior Member
Join Date: Feb 2001
Posts: 108
My mileage sounds like what Tom is getting, close to 30MPG.
Not sure how they get such decent MPG out of such a big
car, but they got something right.
I'd say, bad injectors (check the resistance across the leads,
they should be around 11 ohms I think...my MPG when to s**t
when my injectors started crapping out), bad plugs, or bad O2
sensor.
Not sure how they get such decent MPG out of such a big
car, but they got something right.
I'd say, bad injectors (check the resistance across the leads,
they should be around 11 ohms I think...my MPG when to s**t
when my injectors started crapping out), bad plugs, or bad O2
sensor.
10-10-2001, 10:29 AM
#5
hey guys......
just thought I'd share this--->
after talking with my firend at emmission, I found out that my gas cap was faulty(being since it failed the gas cap test), he informed me that bad MPG is a result of this....So today I got my new gas cap from Nissan, immediately I could tell the difference as I screwed it in, the seal was WAAAAAAAAY tighter than my old cap, next I took the car for a spin(about 20+ miles), with a 1/4th tank of gas, WOT'd it most of the way and did some regular stop and go traffic in the city with "P" mode on....now usually after a "brisk" drive like this, my fuel gauge would be down to the 1/8th point or less when I got home, but surpirisingly it was still holding strong and actually rose a little above the 1/4th point. tommorow I'm gonna run it down to "E", fill it up again and hopefully get out of the 220-240 MPG range and into the 300s again...just thought I'd share, I always thought, bad MPG automatically = bad injectors, but $16 I'm hoping the gas cap was the culprit!!
after talking with my firend at emmission, I found out that my gas cap was faulty(being since it failed the gas cap test), he informed me that bad MPG is a result of this....So today I got my new gas cap from Nissan, immediately I could tell the difference as I screwed it in, the seal was WAAAAAAAAY tighter than my old cap, next I took the car for a spin(about 20+ miles), with a 1/4th tank of gas, WOT'd it most of the way and did some regular stop and go traffic in the city with "P" mode on....now usually after a "brisk" drive like this, my fuel gauge would be down to the 1/8th point or less when I got home, but surpirisingly it was still holding strong and actually rose a little above the 1/4th point. tommorow I'm gonna run it down to "E", fill it up again and hopefully get out of the 220-240 MPG range and into the 300s again...just thought I'd share, I always thought, bad MPG automatically = bad injectors, but $16 I'm hoping the gas cap was the culprit!!
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