MPG 2003 Tahoe

[E4L]

Do you guys have any mod suggestions I should be hitting the 20 -22 mpg is what Im thinking not 17.3 on the highway. Thanks

 

[05Yukon23]

I avoid using gas with ethanol in it for one. It seems like it makes my Yukon idle a little rough and gets worse mpgs.

 

[Huck]

How are you guys calculating your mpg? 21mpg is unbelievable. That's better than a hybrid.

 

[05Yukon23]

Keep in mind this is hwy doing ~60 for me. I look at my dic but it's always about .5-1.5 off. I calculate using a calculator and a notebook that I keep up with my mpg and gas prices. I also use an app I have on my iPhone just as a comparison. If I up driving in town for extended periods of times even with all the hwy driving it drops down to 17-18 pretty quick.


Also I have a 3.23 rear. That might be a big difference.

 

[jem556]

Per the onboard computer, my 03 LT 4WD has averaged 15.6 mpg over the 8 years since purchasing new. The first couple of years, I averaged a high of 16.8 but it has gradually decreased since...

 

[05Yukon23]

Per the onboard computer, my 03 LT 4WD has averaged 15.6 mpg over the 8 years since purchasing new. The first couple of years, I averaged a high of 16.8 but it has gradually decreased since...

City driving mostly?

 

[01HDtahoeNJN]

My best may have been 14...maybe I'm at 210 miles at half tank that was all highway

Sent from my SCH-I500 using Tapatalk

 

[jem556]

City driving mostly?

I live in a somewhat rural and mountainous area. The first 3 years I owned this vehicle it was my daily driver, including work commute. The last 5 years, it has been a weekend warrior and used on trips and vacations...and most of these trips, it was loaded down with 5-6 passengers and top loaded with luggage, etc. No towing though. I typically drive 65-68 mph on cruise whenever practical, regardless of the speed limit. It was in totally factory stock condition the entire time...

 

[ktmhans]

2004 Tahoe AWD 5.3 w/ 3.73 gears, will do 20 MPG on 10% ethanol 21.5 on true gas @ 70 mph with no problem. I came from a S-10 crew cab to this sweet V8 and get better mileage, I feel like I'm stealing.
See my sig for the two aerodynamic mods I did. Shaved rack and added a 06 front air dam.

always wanted to pop that wrack off but never have. What did you do to fill in the holes???

 

[E4L]

Keep in mind this is hwy doing ~60 for me. I look at my dic but it's always about .5-1.5 off. I calculate using a calculator and a notebook that I keep up with my mpg and gas prices. I also use an app I have on my iPhone just as a comparison. If I up driving in town for extended periods of times even with all the hwy driving it drops down to 17-18 pretty quick.


Also I have a 3.23 rear. That might be a big difference.

What iPhone app do you use??