- #254 of 391
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2008 F350 11 MPG
by fordz1
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Dec 03, 2007 (6:46 pm)
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Just took a 859 mile round trip from Virginia to South Carolina towing 3500 LBS. I averaged 11mpg, and on a prior trip with no load it was 15.5mpg. With any luck the mileage will improve before I get my fifth wheel that weighs 13,000 LBS.
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- #255 of 391
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7.3 Diesel loosing power at cruising speed
by godofgsxr
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Dec 05, 2007 (10:29 am)
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I have a late '99 F250 diesel 6 spd with 242K miles and bone stock. lately as you are cruising along, you hear a wooshing noise, like a valve just opened and air is rushing out. at that time you also notice a loss of power. As soon as you hit the gas a bit harder to accelerate, it goes away until you are cruising again. Any ideas? Thanks!
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- #256 of 391
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Re: IS IT OK? [dieseldan]
by jond09
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Dec 13, 2007 (1:07 am)
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Replying to: dieseldan (Apr 14, 2005 5:02 pm)
I have an 06 cummins 6 speed manual. It has a 6" lift and 38" tires. I've had it since it was new. Stock tires best fuel mileage was 15.5 with no chip. I have tried the superchips flashpaq tuner and now have the edge juice w/attitude. Also I have done exhaust and intake breather and manifold. I have done lots of reading and research. My cousin used to build turbo's and I have talk to local diesel performance shops. And hears my two cents. A chip/programmer is not going too kill your truck, but how you use it and how hard you use it might. If you up your horse power/torque with a chip you need to get the air in and out faster. A diesel motor is basically a large air pump until you introduce fuel. The exhaust and intake will help offset the EGT's but they still will get hotter. With your stock exhaust and a programmer you EGT's will be alot higher (200-300degrees or more) than with an exhaust system due to the back pressure created by you stock muffler and cat(if your truck has one). And if you have an automatic you really need to keep an eye on the temp there to. But most trucks monitor all of the readings you need they just don't tell you. This is one of the reasons I got the Edge/Attitude. It will tell you Egts, Trans temp, slip %'s boost, and allot more from your stock sensors. You can set safe guards for all as well. So if your EGT's are getting to hot it will de-fuel itself. But basically to much heat will destroy your turbo and tranny. But again its how you drive and treat you truck. If you monitor everthing you must likely won't have a problem, especially with stock tire size. But I personally would not use a chip/programmer unless you also get gauges to monitor all the important temps in a diesel motor, or one that will monitor them on a screen for you like the edge. This is not as big of an issue if you never tow anything, but its still important. The edge also has a turbo timer so the truck will idle with the key out until it reaches your programed EGT temp so your motor can get cool oil to the turbo bearings. But anyaway. WIth my 38's and my programmer I am getting around 16/17mpg in town and 14/15 towing. I would easilly be in the 20's if I had stock tires. I now have around 36,000 miles on my truck. And on a manual like mine you also should be prepared to do a clutch upgrade in the future if you have a heavy foot with a programmer because the power and torque increase will start to overpower the stock dodge clutch, atleast with oversize tires. This might not be the case with stock size tires. I have several friends with diesels as well ford and chevy all of which have chips/ prgrammers. None have had any problems so far. But all have done exhaust and intake along with the programmer and monitor all there readings. I don't know as much about your ford but my dodge and the duramax work very well with the edge. The superchips and hypertech have worked well on fords that my friends have but just remember to monitor your temps with gauges if the programmer doesn't come with a screen. I have done all the mods to my truck and my friends diesels(lifts, programmers, egt probe ect.....) I would also start reading dielsel power magazine it can be very helpful on which programmer/intake/exhaust is best for your truck. They test it all and give dyno result.
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- #257 of 391
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duramax fuel economy chip
by silvertip6
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Dec 14, 2007 (9:55 am)
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I recently purchased an 04 sierra, with the duramax. I hear that you can improve the fuel mileage with different chips. I was hoping someone could tell me which chips would work the best. thanks
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- #258 of 391
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Auto Lifts
by fpedersen
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Dec 20, 2007 (8:32 pm)
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I am lookong to Purchase a 12T - 2 post automotive life. I have looked a few, but need some recommendation. I have sen brochure on Rotary, Hanmecson, Compete Hydraulic. Could use some help.
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- #259 of 391
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Re: Dodge Ram 2500 Diesel Auto/6 spd [dubbl_c]
by jond09
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Dec 20, 2007 (9:31 pm)
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Replying to: dubbl_c (Sep 23, 2007 5:06 pm)
I'm not sure about the 07. But I have an 06, 6speed. Stock the best I got was 15.5. But I never got it broke in stock. Now with 38' tires, 6" lift, exhaust, programmer, and intake I'm getting an average of 17mpg. As far as 07auto vs 06manual. I love my manual. It also depends if your going to do upgrades. The newer trucks 07and up, will be harder to modify due to all the new emissions on diesel trucks. I know some of the newer trucks have multiple O2 sensors and cats, Which whould make it very difficult to upgrade you exhuast from the turbo back, which is very helpful. If you were going to keep your stock tire size with the right upgrades on an 06 6 speed you would easily be in the 20mpg range. plus you can get the truck alot cheaper.
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- #260 of 391
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Re: Diesel Fuel Economy and chips [pickupwbb]
by svoboy
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Dec 22, 2007 (3:03 pm)
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Replying to: pickupwbb (Mar 30, 2005 11:27 am)
I know a few people who have bought chips and quite a few (if not all) have ended up going back for a refund as they did not experience any gain. The best thing to do is just to get a smaller car/truck and drive more efficiently.
------
Benjamin Jones
Ecomodder.com - Helping you increase your fuel economy
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- #261 of 391
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Re: Diesel Fuel Economy and chips [svoboy]
by jond09
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Dec 22, 2007 (9:40 pm)
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Replying to: svoboy (Dec 22, 2007 3:03 pm)
I'm not sure who you know, but you most not be talking about diesel trucks . As far as they go, every one of them will see some gain from the right programmer/chip. Some do work better than others for deferent brands though. I personally see a consistent 3-4 mpg increase with my accessaries and chip using the exact same driving habits. Obviously the way one person drives deferent than the next can have some impact but even so you still should see some gains. I have looked at you website and it seems like most all of the vehicles are small compact cars or hybrids. The additions of a chip/programmer to any gas vehicle will not see the gains of a diesel if they have any at all in 95% of the cases, but yes they most likely will already be getting better mpg. And on the website you view high performance as mpg not miles per hour. Deferent strokes for deferent folks I guess.
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- #263 of 391
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Re: 2008 F350 11 MPG [fordz1]
by nuclear1
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Dec 31, 2007 (6:07 pm)
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Replying to: fordz1 (Dec 03, 2007 6:46 pm)
I am looking to buy a brand new '08 F350 SRW with 6.4 diesel. I am wondering about fuel mileage especially with diesel prices going up. Do you have the 6.4? Do you have the SRW or a dually?
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