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Diesel Fuel Economy and chips

391 messages,  Last post on Oct 28, 2009 at 4:28 AM

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What is this discussion about? Ford F-250 Super Duty, Chevrolet Silverado 2500HD, Dodge Ram Pickup 2500, Ford F-350 Super Duty, Chevrolet Silverado 3500, Dodge Ram Pickup 3500, GMC Sierra 2500HD, GMC Sierra 3500, Fuel System, Performance Mods, Fuel System, Diesel, Fuel Efficiency (MPG), Truck

#21 of 391 F250 7.3 Fuel Mileage ? by rdgordon4 Jun 26, 2005 (6:53 am)
I just purchased a F250 Super Cab Diesel. I got 12 mpg pulling a Dodge Caravan on a tow dolly for 250 miles. I need 17 mpg empty or I'm selling this truck. I stop everybody I see with Ford, Chev, or Dodge Diesel Trucks. I always hear 18 mpg plus. Is my truck broke or am I hearing alot of stories ? Replies to this message: mullins87 (Jun 29, 2005 5:51 pm) diesel8 (Dec 23, 2005 8:12 pm)
#22 of 391 Re: F250 7.3 Fuel Mileage ? [rdgordon4] by mullins87 Jun 29, 2005 (5:51 pm)
Replying to: rdgordon4 (Jun 26, 2005 6:53 am) Tell us more about your truck, everything you can think of. You'd be surprised how much the configuration will affect mileage.
#23 of 391 ford trip computer by roughneck Jul 07, 2005 (3:24 pm)
I know at least three guys with powerchokes and the mpg reading in the truck is not reliable. Everyone has read 12-14 mpg. But if you take your miles driven and gallons used to fill up they were getting much better numbers. Must be a Ford thing. Replies to this message: 05duramax (Jul 07, 2005 5:08 pm) gagrice (Jul 07, 2005 5:45 pm)
#24 of 391 Re: ford trip computer [roughneck] by 05duramax Jul 07, 2005 (5:08 pm)
Replying to: roughneck (Jul 07, 2005 3:24 pm) This is kind of a convoluted thread, but my 05 Duramax 2500 HD gets 18 mpg so far with about 1,500 miles on it. I haven't towed anything yet. Don't have a chip. Not planning to put in a chip. Stock. Stock. Stock. Didn't actually "need" the diesel, but figured resale would be good and all my buddies say it's the coolest truck I've ever had. So far so good. Replies to this message: gagrice (Jul 07, 2005 5:45 pm)
#25 of 391 Re: ford trip computer [05duramax] by gagrice Jul 07, 2005 (5:45 pm)
Replying to: 05duramax (Jul 07, 2005 5:08 pm) Good choice, Hope you bought the GMC it looks a bit better... Hope you bought in the current Promotion. The prices are great.
#26 of 391 truck MPG by 00cummins5spd Jul 19, 2005 (6:26 am)
I just picked up a 2000 Ram 2500 regular cab with 5spd cummins and 34k miles on it. So far i've gotten (hand calculating) 18.3, 19.5 and 23mpg. 18.3MPG was all city driving and pulling my ski boat (3000lbs) for about 60miles up and down mountains. 19.5mpg was a mix of 100miles hwy, city driving and 30miles pulling the boat. 23mpg was almost all hwy driving, flat interstate and some mountainous 2lane stuff thru the nathahala gorge in NC, was around 649miles on the tank when the fuel light came on. This is with non synthetic oil and regular dino diesel.
#27 of 391 Re: IS IT OK? [dieseldan] by mcb1 Jul 25, 2005 (9:31 am)
Replying to: dieseldan (Apr 14, 2005 5:02 pm) I have an 02 SD 7.3 with 85k and just bought a power controller off ebay for 100 dollars and this has made better fuel per gal,I as yet have not hand figured the mileage on paper but the 180 some miles I have driven and still the tank is just under 1/4 tank when I fuel up I will know for sure,and what power WOW! Replies to this message: firekiller (Sep 03, 2005 1:07 pm)
#28 of 391 Chips by stix818 Aug 02, 2005 (7:37 am)
I just bought a Hypertech III for my 05 duramax and would like to install a boost and pyrometer along with it. I worried that I'll hurt the motor pulling my 10000 lbs trailer. My question is, how hard is it to install the pyrometer and boost gauges? I found a gauge cluster that suposedly comes with all hook ups. Has anyone install one of these kits? Replies to this message: mullins87 (Aug 02, 2005 6:10 pm) mullins87 (Aug 02, 2005 6:20 pm) kcram (Aug 03, 2005 5:09 pm) mullins87 (Aug 03, 2005 6:28 pm)
#29 of 391 Re: Chips [stix818] by mullins87 Aug 02, 2005 (6:10 pm)
Replying to: stix818 (Aug 02, 2005 7:37 am) The boost gauge is simple enough. All you do is find a suitable place to drill a hole into an intake tube downstream of the turbo. Then you just install the fittings that came with the gauge and run the wires and tubing to the gauge in the cab.   The pyrometer can be a little more difficult depending on what type of probe it has and the exhaust system configuration between the engine and turbo. However, you need to know if you have a "pre-turbo" gauge or a "post-turbo" gauge. That will determine where you'll mount the probe. I'm not familiar with the Duramax, however I assume this install should be similar to a Powerstroke. I prefer the "pre-turbo" gauge since that will show you any temp spikes the quickest and those spikes will be more extreme. A "post-turbo" gauge tends to be more stable and will not react as quickly, showing more of an average. There are two probe types, one will just clamp on using a large stainless steel worm clamp and the other requires you to weld a bung to the exhaust pipe. I prefer the clamp on type simply for the ease of installation and I have never heard anything negative about it, of course your experience could be completely different. If you're using a "pre-turbo" gauge, locate a suitable place where you can drill a hole into the exhaust header and install the probe. The preferred place on the Powerstroke seems to be on the drivers side where the header makes the bend from the exhaust manifold to go up toward the turbo. I'm sure the Duramax is different. If you're using a "post-turbo" gauge, then locate a suitable place on the downpipe as close to the turbo as you can get.   Installing these two gauges is a great way to help ensure you don't cook your turbo while towing. If I remember correctly, the Hypertech ran some pretty high EGT's in a 7.3 liter Powerstroke when run hard. May be a completely different story for the Duramax though. While you are at it, install a tranny temp gauge. Anytime you bump up HP and torque, the tranny can really take a beating. Especially at low speeds when the torque convertor isn't locked up.   I hope this helped.
#30 of 391 Re: Chips [stix818] by mullins87 Aug 02, 2005 (6:20 pm)
Replying to: stix818 (Aug 02, 2005 7:37 am) Edmunds rules will not allow me to post the address of another web site. Since your email is private, send me an email and I'll give you that address. I have used these guys for several years now and they have always been great to deal with. They specialize in diesel repair and performance and have an outstanding selection of gauges. They even have a tech support section.   BTW: Let me say that I have absolutely no interest in that business, whether financial or personal. I have never met any of the owners. They have been so great to deal with that I want to see their business grow. Replies to this message: kcram (Aug 03, 2005 5:09 pm) mullins87 (Aug 03, 2005 6:28 pm)

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