Diesel Engine MPG question... i know im going to catch hell for this - Page 2 - TigerDroppings.com

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Carson123987
LSU Fan
Middle Court at the Rec
Member since Jul 2011
36910 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

thats what i thought!


i was amazed everyone wasnt driving diesel








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Wooly
Washington Fan
Member since Feb 2012
11955 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


ah frick it, might as well just got with the FX35





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Carson123987
LSU Fan
Middle Court at the Rec
Member since Jul 2011
36910 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

29 going down a mountain with the motor off










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brass2mouth
LSU Fan
Member since Jul 2007
13085 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


Its def possible, 30mpg Dodge dually: LINK

26 MPG 7.3 F350: LINK






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MrCoachKlein
Ole Miss Fan
Member since Sep 2010
7455 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


It is possible, my buddy's 09 250 gets about 23/27mpg





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bapple
LSU Fan
Capital City
Member since Oct 2010
7137 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


The easiest thing to do with a tuner/programmer is increase the boost of your turbo or turbos. Increasing the boost of a forced induction engine can increase your efficiency and power.

By the way, a lot of guys are showing highway mileage being so high. In town you'll still get crappy mileage. But on the highway when you're in overdrive and you're at a steady low rpm, your turbos give your engine much more efficiency.

I would suggest a Banks tuner. My buddy has one on his old F350 with the old international diesel. It's putting down around 1200 foot pounds of torque.






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lsu mike
LSU Fan
Member since Sep 2006
5847 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


Have an '07 1/2 duramax, one of the last 6.6 lbz's, and have efi live, egr blocker, straight pipe exhaust, pcv re-route. City is still upper teens, pulling boats mid teens, and hwy low 20's staying at 70.





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Hammertime
LSU Fan
apples
Member since Jan 2012
15712 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


I get 25 in my F250. Just had another fricked up motor though.

I don't think there are chips for VW stuff, and even if, you'd have to straight pipe it to see any gains






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Danchase
Georgia Fan
Member since Dec 2012
64 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


I third this motion. I have an '08 2500, EFI live, turbo back exhaust, and the BEST ive gotten is 21 MPG thats going about 63 and not heavy on the pedal. I average 18.5-19 on the highway. 14 around the port





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Ice Cream Sammich
LSU Fan
Baton Rouge
Member since Apr 2010
6901 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

I would suggest a H&S tuner.


An easy canned tune will net you 120HP on a 6.7 Powerstroke. This is with no deletes and factory DPF, etc. Remove the filters and then the fun really begins.

H&S Performance






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deltaland
Mississippi St. Fan
Member since Mar 2011
23051 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


just go to Hypertech or Superchips websites and see what models of cars they have chips for. Some vehicles it improves performance and MPG differently...diesels see the most improvement.

My 08 z71 1500 gas burner has a superchip in it that I installed after putting larger mudgrips on (went from stock tires to 285s with a leveling kit). The bigger tires brought my hwy mileage down to 13-14 from 18-21. The programmer brought it back to the original mileage before the bigger tires so it was worth it.






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VetteGuy
LSU Fan
Mandeville
Member since Feb 2008
11337 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


Bone stock 2011 F250, 17-18 if under 75.
Quieter than a Lexus at highway speeds.

No way I'm putting a straight pipe on it.






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Ice Cream Sammich
LSU Fan
Baton Rouge
Member since Apr 2010
6901 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

Hypertech or Superchips

I know that you didn't make this claim but these are no longer the leaders in gas or diesel engines. H&S, SCT, and Diablo (I think) are the industry leaders. There are some others too but the ones that used to be top dog are no longer.






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Hammertime
LSU Fan
apples
Member since Jan 2012
15712 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


I drive like an a-hole and my highway mpg doubled





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Pepperidge
LSU Fan
Slidell
Member since Apr 2011
2013 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

I'm calling bull shite.

This

29 will never happen...







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Pepperidge
LSU Fan
Slidell
Member since Apr 2011
2013 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


quote:

Increasing the boost of a forced induction engine can increase your efficiency and power.


Not really...adding fuel is what increases boost...
Optimal boost cruising on interstate at 70 is no more than 6#

It's different on different trucks based on gearing, but you want that number as low as possible when cruising the highway...that and the lowest rpms and egt's






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fisherbm1112
LSU Fan
Baton Rouge
Member since Jan 2010
4580 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


He is probably lying. My truck was getting 21 when I still had regular rims and tires. That was with an intake and close to straight pipe exhaust. I didn't chip it until after I lifted it. Now I get 14-15-16 on interstate but I get it whether I have a load or not. I am willing to bet he has more than a chip if he is getting mileage like that.





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KG6
LSU Fan
Member since Aug 2009
2377 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


Big diesels on trucks leave a lot to be tinkered with. I would not mess with a VW's program. They engineer those things to much tighter tolerances. Plus they're already programmer for milage and not power like trucks are. You'll also get better than advertised. My wife has a tdi jetta and averages 39-40 mpg and her commute isnt really hwy miles.





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tipup
Member since Sep 2005
452 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


If he has a 2500 diesel and is getting better gas mileage, maybe he's talking about his wifes car? My buddy put gasoline in my diesel and I got NO mileage!

Well, to think about it i did get better mileage. It was riding on a flatbed trailer to the dealer.






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Yewkindewit
LSU Fan
Near Birmingham, Alabama
Member since Apr 2012
5751 posts

re: Diesel Engine MPG question... i know im going to catch hell for this


Miata at 30 mpg, no engine hops.....





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