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Bio-Diesel and Alternative Fuels Discussion of biodiesel (homegrown or store bought) and other alternative fuels for diesel-powered vehicles.

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Old 11-23-2012, 11:32 PM   #1 (permalink)
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major MPG gains

i have a 93 7.3 non turbo. i like it... no i love this truck. when i first got it i was getting 14 mpg town and 20mpg hwy. when changed to a 50/50 waste oil to diesel mix it shot through the roof. no lie like 26mpg+ hwy and 20 town. is that what is happening to everyone else?
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Old 11-24-2012, 03:55 AM   #2 (permalink)
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I got substantial gains when I put in my W85 chip.
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Old 11-24-2012, 10:20 AM   #3 (permalink)
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What is this chip you speak of my friend?
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Old 11-24-2012, 01:27 PM   #4 (permalink)
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DP-Tuner has a chip designed to burn W85. I do not know how that would work with your 93 IDI but I'm sure they would be glad to tell you. I have heard great things about the old IDI engines and they seem to work with W85 very well. I had one before I got into WMO and loved it. Google DP-Tuner and you should not have any trouble finding them.

Up date your signature so we know what your truck is and we can do a better job of advising you on what you might need.
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2000 F250 Superduty 180K and counting 4X4 4R100 Glow Shift gauge - EGT - Boost - Tranny Temp Fuel Pressure on an A pillar mount Diesel Site boots Transgo shift kit K & N Stage II air filter 5" exhaust RiffRaff AIH to boost mod CCV mod DP-Tuner with W85 settings Amsoil Bypass oil filter 6.0 tranny cooler, W80, Cooling Mist water injection.
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Old 11-24-2012, 02:04 PM   #5 (permalink)
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Are you sure that you are measuring accurately?

I get a little less mileage on WMO, but I quit caring since it is so cheap.
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Old 11-24-2012, 02:57 PM   #6 (permalink)
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only way if you have not so top pump and less viscosity can made gain,like more pressure inside the pump and more advanse some say.
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Old 11-24-2012, 03:00 PM   #7 (permalink)
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Quote:
Originally Posted by F250Truckin View Post
DP-Tuner has a chip designed to burn W85. I do not know how that would work with your 93 IDI but I'm sure they would be glad to tell you.
I can tell you without you having to ask them..IT WON'T since the IDI doesn't have a PCM..only thing close to a computer on the IDI is the TCM if you have an E4OD transmission, and the ABS module if you have RABS.
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Old 11-24-2012, 03:01 PM   #8 (permalink)
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yea ive run a weak pump on w-85 a long time, it wouldnt run with diesel in the end,
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Old 11-24-2012, 03:07 PM   #9 (permalink)
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Are you sure that you are measuring accurately?

I get a little less mileage on WMO, but I quit caring since it is so cheap.

trust me i was double and triple checking. what i do is fill it to the top. that means the cap is touching fuel. and after going 150 miles i went to top it off with the fuel i brought with me. i did not get a full 5 gallons back into it before it was back full. open highway driving i get 30 not hauling and 24 pulling my gutter trailer. in town is 20mpg either way.
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Old 11-24-2012, 06:19 PM   #10 (permalink)
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Count your blessings, that is great mileage.
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2000 F250 Superduty 180K and counting 4X4 4R100 Glow Shift gauge - EGT - Boost - Tranny Temp Fuel Pressure on an A pillar mount Diesel Site boots Transgo shift kit K & N Stage II air filter 5" exhaust RiffRaff AIH to boost mod CCV mod DP-Tuner with W85 settings Amsoil Bypass oil filter 6.0 tranny cooler, W80, Cooling Mist water injection.
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Old 11-24-2012, 06:28 PM   #11 (permalink)
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The IDI guys would advance their timing a few degrees for WMO - that's where we got the idea to go to Jody and ask him to do some programming for us computer dependent guys. We tested four different variants and came up with one that ran the best with the least smoke.
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Old 11-28-2012, 01:39 PM   #12 (permalink)
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FWIW my 93 cummins was getting about 13 mph pullin about 18k @ 65 mph.I ran a tank half WMO with 10% RUG mixed with half tank of D2 pulled the same load to the same place runnin 65 mph and got 16 mpg.

I just swapped in new inj. and bumped up to the bosch 190's about 30RWHP increase im told through PDR.The truck runs strong! big improvment...im going to do some tuning on D2 then run the full on W85 and see what I get out of her.

The 93 cummins is a rotary pump no computers,Ive bypassed the PCM.

I know you guy are Ford dudes and my experiance with the cummins may not help you guys...I hope Y'll will tolerate my piece of Dodge jabber,I come here cause the knowledge,experiance with the W85 is the best here!
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Old 11-28-2012, 11:46 PM   #13 (permalink)
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well all i know is that open highway the mileage is amazing. i am going to start the conversion to a w85 mix. lets see what that does.
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Old 11-30-2012, 01:52 PM   #14 (permalink)
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Why not,run in highway at 90 km/h or 2000-2300 rpm CONSTANT and bingo.
Years ago (20 I think)old opel test on highway in Eu on 2000 km for 60 km/h and they get ~4 lit/100km.it`s carb model,tricky 60km on highway but they get VW Lopo mpg.
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