gas sucks ?

i have a 2012 dblcab sport with 3 inch lift on 33 an im getting around 10 miles to a gallon! why so bad?

 

hard on the skinny pedal. big tires / lifted truck. most likely stock gearing. winter blend fuel.... Ten does seem a bit excessive though.

 

What size rims and what load range are your tires? how hard do you press the gas at stop lights?

 

Both of these are probably the main reason. When i was running a 285-65-18 with a 3 inch lift i was getting around 17 in the city. So your seems very low.
Edit : mine was a shortbed double cab

 

Have it checked out for codes. Clean your throttle body. Check your air filter. Check your tire pressure.

 

Yep.

 

Have you taken into account the tire height difference between a 30 inch stock tire to a 33 inch tire. The larger tire records less revs per mile and so will your odometer

 

^ good call mike

 

Like 5%

 

A simple miscalculation for the tire size...

 

Just checked the Tire Calc for reference

265/65/17 to 285/70/17 would result in a 6.6% difference

 

If you assume a 29" tire for stock. Your 10mpg should be in the nature of 11.38mpg if you factor in the 33" tires. That takes up some of it. But it still seems excessively low.

 

using OZ's calculation which is more accurate its even worse. 10 x 1.066 = 10.66mpg.

 

Stock TRD Sport has 265/65R17 = 30.6X10.4R17

The driving that I do around town this winter is very limited...(1mile commute each way to work.) I probibly am getting around 13mpg if not less...

 

Are u letting it warm up before u drive it in the mornings? It gets 0 mpg in park which will hurt overall mpg

 

The 4.0L drinks fuel like a corvette on a winter cold start. It starts at 1.5-1.7 gph and won't drop below 1 gph for a few minutes. In comparison, the warm idle is about 0.35 gph.

As for on the road, that right pedal is the toilet flusher. Only push it if you want to hear the swoosh. That 3" lift and big tires are like the extra large turd that has to be flushed.

OP - driving habits, or route conditions? I can think of a few ways to get 10 mpg out of my truck too but it wouldn't involve the quiet 20 miles to work.

 

I'm getting 22 on my 2013 DCSB SR5 4x4. 18 gallon tank getting almost 400 miles