Gas tank mileage

Hi all,

I have a 2017 DCOR manual with about 5700 miles on it. Normally a full tank after filing registers at 365 distance to empty. Today I filled and it's at 394. Don't get me wrong I'm stoked on this but wondering why this is happening?

Thx

 

It’s an estimated number based on your average MPG.

So it means your last tank you got better mileage than the previous tank, in theory. I don’t find my range or electronic MPG to be accurate.

 

I wish I got over 300 miles on a tank.

 

Usually the computer is about +.3-.5 MPG off in my case.

 

Use an app like Fuelly. The statistics you collect over time will give you a much more accurate representation of how your truck is using fuel.

 

My truck is the same as yours and does the exact same thing

 

You must be hammering it then because I can get between 370 and 400 miles pending where I'm going here in TN.

 

Good god man, do you hammer the throttle everywhere you go or do alot of towing??

 

Trailer?

 

That’s 80mph highway towing nothing.

 

Well there you go. Solves that mystery.

 

This is exactly what I have found every time I check my mileage/gallons used against the computer. My mileage range varies from 385 to 410 miles on the computer after fill up. Lately, there has been a real drop in my mileage without change in driving habits/speed/hwy/around town. I've gone from averaging 20 mpg down to 17 mpg. Must be the winter blend of gas and I use Chevron gas. I'm assuming they increase the alcohol content of the gas up here in the PNW. BTW, I just use the unleaded grade, not the premium.

 

I usually end up with somewhere around 325ish per tank (fuel light on).

 

Cold weather definitely makes a mileage diff. Cold differential lube, trans lube, and engine oil. I was getting 450 miles per tank and 23.8 MPG. Now its dropping to 22.2 as it gets colder.

 

Mines up to 17000 miles. Its always shown 385 after every fill up. Twice its read 415.
My average MPG is 21mpg.

 

Haven't put enough tanks through it to figure out what I get with different driving, but in about 1,500 miles I have ranged from 22 down to 17... last tank was the worst so far. Have installed bigger tires and have adjusted my miles driven (~ 3%) by the correct percentage when I fill up again, and just divide by the gallons to full. Assume this is the correct way to get a pretty good number. Obviously my computer number is now off by a bit.

 

Yeah but you have a lift and heavier tires....

 

90+ for most of the drive to Vegas and back with a bunch of city driving while we were there for my son's baseball tournament. Got over 400 on the last two tanks. With two adults two kids all our luggage and baseball equipment.

 

Truck and setup? Stock? Must be very conservative driving with a full truck and some city driving to get that mileage... Prius's passing you on the freeway onramps?