Fuel Mileage

[wrightcj]

What should I be getting? 08 CC 6.4L with 325x60x20 Nitto Terra Grappers on 20x8.5 KMC XD Spy Wheels. No lift. I went from about 13mpg to 8-9 mpg.

Plan on buying a programmer ASAP. What should I buy? I tow a 16 ft trailer with fourwheelers and a 22 ft Wakeboard boat that weighs about 4K lbs.

Any info will be greatly appreciated.

[DSTRBD]

H&S tuner, 4" or 5" exhaust, and an AFE or S&B intake. Theres a ton of info here, do a search and you will have reading for days. Feel free to give us a call if you have any questions.

[08stroker250]

If you would like any info on the Spartan Phalanx, let me know! I respond to both PM's and emails. My email is below in my signature.

[Suthrn]

Originally Posted by wrightcj

What should I be getting? 08 CC 6.4L with 325x60x20 Nitto Terra Grappers on 20x8.5 KMC XD Spy Wheels. No lift. I went from about 13mpg to 8-9 mpg.

Plan on buying a programmer ASAP. What should I buy? I tow a 16 ft trailer with fourwheelers and a 22 ft Wakeboard boat that weighs about 4K lbs.

Any info will be greatly appreciated.

What are you basing your mpg off of? Did you get the speedo recalibrated or using a gps? I ask because if you changed tire size your odometer and speedo are off. I was showing some crazy numbers from the lie-o-meter in the dash but had no idea until I got my speedo working right.

[wrightcj]

The truck hasnt been calibrated or anything yet, so I know the numbers arent accurate. Just wanted an idea from all the experts on what I should be getting.

[Suthrn]

Originally Posted by wrightcj

The truck hasnt been calibrated or anything yet, so I know the numbers arent accurate. Just wanted an idea from all the experts on what I should be getting.

I asked because you said you lost almost 5mpg and that doesn't sound right. I lost about 2mpg going from my stockers to 37's on the factory 20's. Given my daily driving routine I'm getting about 13mpg. That's a 18 mile run from my house to base doing 60mph and the little bit of driving I do around town getting the kids from daycare and putting around base. My truck is stock.

[wrightcj]

Yeah, mine really dropped off alot. What do you do in the Air Force? Where are you stationed?

I talked to a diesel performance shop here today and think Im going to go with the H&S Black Maxx, 5" exhaust from the turbo back and an intake.

Dont think I need all of that, but for around $1700 installed for all of it, dont think its too bad of a deal.

[Suthrn]

Originally Posted by wrightcj

Yeah, mine really dropped off alot. What do you do in the Air Force? Where are you stationed?

I talked to a diesel performance shop here today and think Im going to go with the H&S Black Maxx, 5" exhaust from the turbo back and an intake.

Dont think I need all of that, but for around $1700 installed for all of it, dont think its too bad of a deal.

C5 Loadmaster / Dover AFB