And what is the most gas you have put in your car, anything less than 20 gallons is more miles you could have drove.

 

I just did a road trip and got about 29 mpg after city driving. Maybe 450 to a tank.

City driving kills it.

 

I got 360 miles before the light came on with 30% city and 70% highway. I'm hoping to break the 400 mile per tank mark.

 

How many gallons does it take to fill up when your light goes on?

 

I think about 14 gallons. I'll double check tomorrow when I filll up.

 

So you have 6 more gallons left in the tank. You shouldn't have an issue getting 400+ miles per tank.

 

Yup. I actually go off my MPG for DTE. I know it has a 20 gallon tank , reset my MPG counter every fill up, and calc my DTE that way. It is very accurate. If you are averaging 22MPG , that means you can go 440 miles. I try fill with1 to 2 gallons left. Typically I fill about 17.5 gallons, this means driving with DTE 0 for over 100 miles.

 

I would cry a river full of tears of joy if I even got 30 MPG. TELL ME YOUR SECRET!!


I do 85% highway driving and I cant seem to pass 24.5. And on top of that the only time I hit that MPG was when I had a ghetto "nissmoe" front lip on.

 

Climate, conditions and driver input matter a lot. Best I have gotten was up in Colorado Springs area , 75% freeway and averaging 28mpg.

 

I guess another question to be asked, when we fill up the Z does it actually fill up to capacity of the tank or is the specs just saying the tank is of 20 gallon size, but in reality the amt of gasoline in the tank is probably more like 18-19 gallons?

 

In virtually every vehicle I've owned for the last 30 years there will be a few gallons in the tank long after the fuel gauge is pegged dead empty.

On the track mine will go from reading half full to dead empty and dte light flashing just from lateral g's. There seems to be no baffling in the oem tank at all.

 

20 gallon, if you fill up only 17 gallons, that means you still had 3 gallons in it.

 

So we gots overly conservative gas tank. Literally got an extra 50-75 miles b4 actually dry then

 

my Z is my gas saver car, i have an average of 33mpg, according to my stock gauge. and i usually get on it a couple times every time i drive. imo it gets crazy good mileage. my 05 silverado might get 250 miles per 25 gallon tank. (3 foot tires and a fixed tune)

talk about conservative. the silverado light is still on after putting over 15$ in the tank. it gets about 10mpg city. i know the tank pretty good by now, ive run it dry atleast 10 times, completely dead coasted to the side of the road. the tank is so big it wont even start without 1.5 gallons dumped in.

and dont get me started on my 73' 5.7 litre camaro, my fuel pump/lines weren't feeding fuel, so i taped a 20 ounce water bottle upside-down to my windshield and ran a fuel line to my carb and gravity fed fuel to the engine. at idle,it went thru it in less than 2 minutes.

 

I just got 490 miles out of my last tank. Took 18.1 gallons to first click and 18.6 before it started spilling out. That equals 27mpg avg. It's annoying how early the light comes on in my car. I drove 40-50 miles after the dte hit --- and apparently I still had 1.5 - gallons left after I topped it up

 

 

That pic means nothing unless the DTE was not reset for some period of time. You can reset it, then roll down a long hill, and make it read 40 MPG or more. Pointless. Using any gauge other than the odometer and gas pump to measure fuel mileage is also pointless.

 

maybe more like 25-29 mpg is the highest i have ever seen, but you can trick that DTE meter to say anything

 

that was highway cruising 67mph.

 

and you recalced the mpg counter before you went on this trip?