MPG on a 1999-2001 Q45 ?

[TransformCelsior]

what kinda mpg are you guys getting ?

[Q_Ship]

BAD!!! :o

[antbo]

BAD!!! :o

i was about to put the same exact thing before i clicked on to this thread and saw your post ;D

[cullenj76]

I average anywhere between 20-24, depending on my driving style.

[Dark Anghell]

On my last trip I had an average of 22-23MPG, and that's driving at 70-80MPH the whole way. In the city I get somewhere around 19-20MPG. My mileage went up after I switched to fully synthetic oil.

But like my friends and I always say "you gotta pay to play"

[TransformCelsior]

around 20 mpg is pretty damn good for a 8 banger.

I'm averaging about 16 mpg local and 22 highway on a lousy 3.5 liter 6 banger, Not only am I getting lousy fuel economy, the engine performance is lousy, only 240 hp.

It pisses me off because I have worse fuel economy vs 8 bangers such as q45 and LS400's.

[VIPQ45]

Shut up!!! I am getting 13-14 local driving and 17-18 MAX on fwy driving.....

[antbo]

Shut up!!! I am getting 13-14 local driving and 17-18 MAX on fwy driving.....

sounds about right

[Q_Ship]

Shut up!!! I am getting 13-14 local driving and 17-18 MAX on fwy driving.....


Me too. I don't see how anybody gets mid to upper 20's period.

[zion_97]

I averaged about 22-24 mpg in the city untill I put the wheels on now Im about 19-21mpg. depends if I use alot of the ac or not and driving conditions

[BlueC]

I'm getting around 15-17 mpg in the city and 20-24mpg on the highway. Managed to get 23mpg doing a constant 90mph on a 500 mile roundtrip.

[zion_97]

I'm getting around 15-17 mpg in the city and 20-24mpg on the highway.* Managed to get 23mpg doing a constant 90mph on a 500 mile roundtrip.
Seems really low. I wonder why?

[BlueC]

Seems really low. I wonder why?

Seems correct to me. Are you sure your calculations are correct? I calculate mine exactly to how much gas is filled up and the exact mileage inbetween. 20-24 in the city seems very high for this car, considering it was rated from the factory lower than that, and todays standard of gas you wont get what the ratings put out.

[zion_97]

Yes sir I sure am..I duno why your not though..I use premium unleaded and fill it up all the way. Once it gets to half a tank I fill it up again.I have been doing this
for 11 months now and the same everytime. Try it. if it don't work I dont know what to tell you, but even the other guys are getting better
I average anywhere between 20-24, depending on my driving style.

On my last trip I had an average of 22-23MPG, and that's driving at 70-80MPH the whole way. In the city I get somewhere around 19-20MPG. My mileage went up after I switched to fully synthetic oil.

But like my friends and I always say "you gotta pay to play"

[Dark Anghell]

I t depends on how you drive...I drive like a grandma, so when I start moving I accelerate very slowly. But if I just gun it at every traffic light or up the hill I can literally see my gas gauge go down hehe. I just recalclulated more recent mileage and I'm getting around 16-17 around the city...that's with 265 series rubber though.

[BlueC]

Yes sir I sure am..I duno why your not though..I use premium unleaded and fill it up all the way. Once it gets to half a tank I fill it up again.I have been doing this
for 11 months now and the same everytime. Try it. if it don't work I dont know what to tell you, but even the other guys are getting better


So you're calculating the mileage based on the 1/2 ful mark on the gas gauge? That might be why you got such a high number.

[zion_97]

Yes I am. If you fill up your tank and drive a half way you will get a higher gas milage vs when you fill her up
at the end of the tank. The reason is this. for 1) gas evaporates the longer it sits in your tank ( 2) when running you tank till the
end you are sucking more air (fumes) than full. My father was a mechanic and he is the one that told me to
do this. We have been for years and it pays to do this. Try it I swear you get better gas milage. Example.
I usually drive anyware from 160-175 miles on a half a tank of gas. if it takes 7-8.5* gallons to full back up depending it you toped off.
well 175 miles* devided by 8.5 gallons = 20.5* miles per gallon and that is with my wheels on and on the low end. IF you do this 5 times in
a row you will see that your average gas milage is steady...its basic math man.....just to let you know as well when I do an average from full to empty
I am 19 -20mpg every time just so you know that I did try it I just prefer to get 20-22 mpg........... ::)
Zion_97

[jEzTeR]

I have an 03 M45 and get about 20mpg city/rural(I havn't done much hwy driving with it yet).

[TransformCelsior]

so has anyone tried Zion's method ?


Yes I am. If you fill up your tank and drive a half way you will get a higher gas milage vs when you fill her up
at the end of the tank. The reason is this. for 1) gas evaporates the longer it sits in your tank ( 2) when running you tank till the
end you are sucking more air (fumes) than full. My father was a mechanic and he is the one that told me to
do this. We have been for years and it pays to do this. Try it I swear you get better gas milage. Example.
I usually drive anyware from 160-175 miles on a half a tank of gas. if it takes 7-8.5 gallons to full back up depending it you toped off.
well 175 miles devided by 8.5 gallons = 20.5 miles per gallon and that is with my wheels on and on the low end. IF you do this 5 times in
a row you will see that your average gas milage is steady...its basic math man.....just to let you know as well when I do an average from full to empty
I am 19 -20mpg every time just so you know that I did try it I just prefer to get 20-22 mpg........... ::)
Zion_97

[DEE]

300 miles a tank

[kinkyfly]

i got 99 q45. about 15~17mpg.

[AcUrALiTy]

right now, hawaii has 3.50$ per gallon!!!!! fucking crazy!!!!! always filling my tank up, fuckin V8's

[mebippu]

i get bout 16-17 around the neigborhood and 20 or so hw. but imma go get my fuel rail flushed later and see how that changes things.

[carnal_c30]

i'm getting 21-24mpg lowest i've gotten was 20mpg and I usuuually get about 23 my last tank was up to 24 because it was during a roadtrip

[cvc9216]

I get about 19 with normal driving, 23-24 highway trips 80mph

[DEE]

I get about 19 with normal driving, 23-24 highway trips 80mph


are u on stock wheels???

[7down]

325 miles a tank average (city +highway)

65 on freeway, 23-24 mpg is the best I can do

20mpg city

19" 275 rubber + coilovers

I drive like a grandpa.

[7down]

^^scratch the city mpg.

I'm rarely on the streets so I don't have a good number for that.
Using Premium fuel, fuel conditioners, and Full synthetic oil. Gonna try the filling at half tank trick. See if I can get more miles. Theory seems right. A small amount of gas does evaporate faster than a large amount.

[Benji]

300 miles a tankSame here.

[DEE]

Same here.


300-325 per tank freeway on 19's 265 rear 245 front
245 city = 12-13 mpg city lol .....how sorry is that lol
I

[rolloverboi]

i get 200 miles or even less in a tank probly, i think there's something wrong with my car. i have no idea why i get so less. im going to do a major tune up sometimes this week and see how much more mpg i get from a full tank.

[cvc9216]

are u on stock wheels???

19s

[KingD518]

what size is the gas tank ?

[DEE]

20 gallon