Thirsty 6.4

[spinningwheel]

Thanks for the welcome.I really need some ideas for my 6.4 F350 crew dually,I'm only getting 8.8 to 9 miles a gallon.I have banks exhaust and cai and my mileage sucks.
PS 430 gear

 

[EmptyDub]

Welcome to SDD and welcome to the world of 6.4's! This is my first diesel, and I was really disappointed in the mileage also (considering that everyone else in my family is getting 20-22 mpg with their diesels!). I drive mine really slow an' easy and still can only SQUEEEEZE about 15-16 mpg on a good day. As far as I know, there's not really much we can do about it unless you get rid of that DPF, straight-pipe it, and get a programmer with an economy setting (and then you'll be voiding your warranty unless you can find a mod-friendly stealership). I had to park her at home last summer and ride with my wife when fuel was touching $5/gallon. If fuel starts to climb again THIS summer (which I'm sure it will), she'll be parked again soon.

I know this doesn't give you any answers, but at least you'll know you're not alone!

 

[nascar_fan28]

its not just 6.4, my neighbor only gets about 12 max with his 6.7 dodge... all that emission stuffl, and way computer is programed

 

[DaveBen]

Don't get too excited over mileage until you have broken in the engine. This will take 15,000 miles! Yes, 15,000 miles. You will get better mileage.

Dave

 

[WD40]

Don't get too excited over mileage until you have broken in the engine. This will take 15,000 miles! Yes, 15,000 miles. You will get better mileage.

Dave

15000, yeah right. My truck now has 45000 and I am still waiting for that better MPG that everyone says it will get.
Doug

 

[atk]

Welcome to SDD....