- #288 of 391
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Re: MPG GMC 06 Duramax Diesel, 3500HD [06gmc3500]
by acapaldi
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Jan 17, 2008 (11:06 am)
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Replying to: 06gmc3500 (Jan 15, 2008 8:46 pm)
hi i have a 08 3500 hd and i have had it since sept. 07 amd i have broke down 3 times and i am only getting 8 mpgs was wondering what you were getting
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- #289 of 391
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Re: Not sure what went wrong??? [steergazer]
by jond09
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Jan 17, 2008 (12:29 pm)
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Replying to: steergazer (Jan 17, 2008 7:38 am)
I agree the stock 4" exhaust is pretty good. I just remove my cat as well and put a magneflow muffler in place of the stock one. I think it sounds good, not to loud at all for me. It really didn't get much louder, just a better sound. Got it of ebay for $75. The stock muffler is very heavy and veeeerrrryyy restrictive. If your impressed with your truck now, you won't believe it when you get a chip. I also love messing with the tuner cars. They really fell bad then since I'm running 38" tires and I can still smoke'em.
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- #290 of 391
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Re: Not sure what went wrong??? [jond09]
by steergazer
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Jan 17, 2008 (6:22 pm)
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Replying to: jond09 (Jan 17, 2008 12:29 pm)
The magnaflow sounds like a good choice. My first real deal with a chipped diesel amazed the heck outta me! I had a gs1150 motorcycle 172hp. This thing would go. I pulled out to pass a dodge pickup on a 4 lane one day and he stomped it as I was going by. I was in disbelief that the acceleration was so fast! We hung side by side up till 112mph then I cracked it and got away! Then I went and bought me a dodge diesel and am on number 2 now!lol Have you heard of the workhorse module? Everything I've read makes me think it would be a good choice.
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- #291 of 391
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Fifth Wheel Pulling Mileage
by jmh577
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Jan 21, 2008 (9:27 am)
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I own a 2004 Crew Cab 4x4 with the LLY motor. It has 75,000 miles on it and it is still stock. In the summer on the level with minimum stopping at 60 mph I can get 20 mpg. I am looking at purchasing a fifth wheel RV with the weight of between 8000 and 9000 lbs. Can anyone tell me about how much my mileage will drop. I know that the faster I travel over 60 the more it drops without a tow vehicle. I only get about 16 at best at 70 mph. I have thought about installing a Bully Dog and am also interested in anyone who has experience with them and how much it improved their mileage.
Thank You
John
Ada, MI
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- #292 of 391
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Re: Buying [steergazer]
by jim314
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Jan 21, 2008 (12:07 pm)
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Replying to: steergazer (Jan 15, 2008 10:21 am)
Since you report the odo reading in kilometers (km) I assume that you are in Canada. So the 27 mpg is 27mpgC = 27 / 1.2 = 22.5 mpgUS. Right? Of course this is still very good for a 3/4 ton truck.
Isn't fuel in Canada sold by the liter (L)? And do the odometers in Canada read in km only? So you convert L to galC and distance in km to mi. Right?
Do Canadians usually report fuel use in liters consumed per 100 km driven (L/100km)? Could you give some raw data and show how you do your calculations to get mpgCanadian?
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- #293 of 391
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Re: 2008 F350 11 MPG [nuclear1]
by firewalkerjohn
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Feb 21, 2008 (4:21 pm)
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Replying to: nuclear1 (Dec 31, 2007 6:07 pm)
I have a 2008 F250 6.4L Diesel with the 20"wheels and about 4000mile to date and my day to day average fuel mileage is about 11.8mpg. I drive about 60% highway / 40% city. I've read many that say their mileage is the same as mine but then there are those that are getting much better. I will have to say that it is hard to believe after driving mine. I read that the 3rd build cycle will be installing 3:55 and a taller front air damn.... http://www.pickuptruck.com/html/news/ford/superduty/jobthree/jan08change.html
My F250 is having a multi check engine light problems that have no fix available at this time so Im looking into Lemon Law but I will be looking into replacing it with another just like I already have.
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- #294 of 391
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Re: 2008 F350 11 MPG [firewalkerjohn]
by hd82
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Feb 22, 2008 (2:44 am)
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Replying to: firewalkerjohn (Feb 21, 2008 4:21 pm)
I have an '07 250 Crew 8' bed XLT with the diesel, I drive about 70% Hwy - 30% city. It now has 14,000 miles and getting 16mpg since the day I bought it. Everything left stock, stay around 70 - 75 mph, no payload or trailer. I do use Diesel Kleen with every fill up. I believe the biggest killer of MPG's is driving habits, if people can keep their foot off the floor and afford the soot, MPG's are better, just my opinion.
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- #295 of 391
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Re: 2008 F350 11 MPG [hd82]
by albright
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Feb 22, 2008 (6:15 am)
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Replying to: hd82 (Feb 22, 2008 2:44 am)
I HAVE A 08 F350 DULLY 20,000 MILES ON IT. MY GAS MILEAGE IS 10.4 AROUND TOWN AND 10 ON THE HWY. MY TRUCK WOULD BE GOING DOWN THE HWY AT 65 MPH AND WOULD LOSE ALL POWER GO DOWN TO 10 MPH I WOULD HAVE TO PULL OVER AND TURN OFF THE MOTOR FOR ABOUT 5 MIN. TO COOL OFF, THEN I COULD GO. MY PULLING MPG ARE AROUND 7. MINE OPINION WOULD BE TO STAY AS FAR AWAY FROM A FORD WITH THE NEW 6.4 IN IT.
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- #296 of 391
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costs of increasing wheel/tire diameter
by elias
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Feb 24, 2008 (4:46 pm)
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Replying to: steergazer (Jan 16, 2008 11:39 am)
steery-eyed gazer, the difference in energy required to get the wheel rolling relates as much to the wheel's shape/size as its weight. even if the weight is identical there's a big energy/momentum cost for the bigger aluminum wheel because the wheel's mass is further from the axle. same is true for the bigger tires - cost/penalty even if they are the same weight.
ballpark: if the wheel/tire combo is twice as tall as the stock combo, and about the same weight, it's going to cost at least twice the energy to get rolling (and stopped) compared to the stock tires. (you'll wear out the brakes faster too.)
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- #297 of 391
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Motor Kote???
by pipfindr
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Feb 25, 2008 (3:57 pm)
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Has anyone tried Motor Kote yet in a 6.0 ltr Diesel?? It's an additive.
saw the web site and am a skeptic. I will not use Lucas anymore in the winter ... it is way too thick and hard on turbos and injectors. This other stuff looks good but is it???
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