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Post your MPG on Taller Tires


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Posted

Its an age old conversation. We all know that you will not get Volt mileage out of a Silverado on 35s, but nobody wants to shell out money and get horrible mileage on purpose. We are all aware that we will take a hit at the pump with larger trucks and tires, but lets be honest, we all would like to soften the blow. That ultimately leads to thousands of repetative threads with one basic question, "What gear ratio should I get to keep or return my MPG?"

 

So, lets get a thread started about MPG for lifted trucks. Its stimple. Just post up the following info on your truck and then we can redirect those looking for answers to this thread, and hopefully someone with a similar truck setup has posted so the can make a comparison.

 

Info needed.

 

Year

Engine

Transmission

Tire Size

Gear ratio

MPG at XX mph or LPH at XX kph for our metric friends

Possibly even driving conditions or terrain

 

Lets see what you guys are getting.

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Posted

Year: 2011

Engine: 5.3

Tranny: 6 speed

Tire Size: 295/70R17 (33.5")

Gear Ratio: 3.42

MPG avg: 15

Terrain: mostly flat (I live in the delta, it's flat as a board for the most part)

Posted

You beat me to the punch

 

2005

5.3

4L60E

35x12.50x17

3.42 (I know, Im one of the guys who was gonna ask this question)

16 mpg higway, 15 mpg on rolling hills, 14 mpg mixed hwy/city

Posted

No lift here, except a 2 in RC level kit. But I thought you may like a stock truck for reference.

 

 

Year: 2012

Engine: 5.3

Tranny: 6 speed

Tire Size: 265/70R17 (Factory tires)

Gear Ratio: 3.42

MPG avg: Highway average 19.6 @ 70mph, Mixed 25% hwy / 75% city average 16.5

Posted

2009

4.8

4L60E

32x8x18

3.23

18.5mpg@70mph 14mpg@25mph

70% city15%hwy 5%towing

3.5inch lift and im in the central valley so flat

want to go up to at least 3.73 but what do you all think of 4.1? too much?

Posted

Stock reference for an LS.

 

2011

 

4.8L

 

4L60E 2WD

 

245/70/R17 (stock size)

 

3.23

 

19 Highway / 16 mixed / 14 city

 

Note- I live in a hilly area, I am constantly driving up and down hills around here.

Posted

Year: 2010

Engine: 5.3

Tranny: 6 speed

Tire Size: 275/65R18 Cooper Discoverer AT3's

Gear Ratio: 3.42

MPG avg: Highway average 18.5

 

Year: 2008

Engine: 6.0L Vortec Max

Tranny: 4 speed

Tire Size: LT265/70R17 Cooper Discoverer AT3's "E" rated

Gear Ratio: 3.73

MPG avg: Highway average 14

 

Don't do much in town driving with either truck.............My Cruze gets 38mpg highway back and forth to work, that's why trucks don't get much use. Wish my trucks would get that.

Posted

2010

5.3

6-Speed

285/65/18

3.42

19MPG Highway/ 16MPG Mixed/ 14MPG City

Posted
Now we just need some of those big boys to chime in.

 

You rang?

 

2003

LQ4 6.0

4L80E

315-75-R16

4.10

 

Hand calc consistently says around 10.65 mpg with 70/30 highway/city with the cruise at 70 on the highway and sometimes "gettin' it" during the city commute.

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