Propane for fuel mileage

Discussion in 'Trucks [ Eighteen Wheelers ]' started by roadking1474, Jan 29, 2007.

  1. roadking1474

    roadking1474 Bobtail Member

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    Sep 12, 2006
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    I have been using a progressive propane injection system on my 550 CAT for a little over 3 months now . I was getting about 5.5 to 6 depending on my haul etc, and now consistently see 7 to sometimes 8 (again depending on my load and right foot:laughing9: ) I was apprehensive about the claims of a 2mpg increase, but for me it is very close. The power gain is impressive too.
    So many guys I talk to have never heard of it that it got me to wondering if anyone else is using this system or another like it and is it working for them??

    I would think.......it could help alot of us who are struggling with the price of go juice.

    I like that there is an icon just for me:smt029

    :toothy10: :toothy10:
     
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  3. PappyGT13

    PappyGT13 Light Load Member

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    This is becoming a popular performace additive for diesel pickups.Look for Diesel Power & Diesel World magazines. They cover diesel performance enhancements for mostly up to 1 ton trucks.
     
  4. Aussie

    Aussie <strong>Thunder From DownUnder</strong>

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    This has been in use for many years overseas - In Sydney they run the buses on LPG, as well as taxis. Private vehicles can also run it in conjunction with petrol and can be bought with it already fitted - the only pollution it gives out is, which it isn't, is water.
     
  5. panhandlepat

    panhandlepat Road Train Member

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    the gas company trucks here in FL. run on propane
     
  6. PackRatTDI

    PackRatTDI Licensed to Ill

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    I believe all the Schwans home delivery trucks run on LPG.
     
  7. roadking1474

    roadking1474 Bobtail Member

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    Sep 12, 2006
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    It must be becoming a popular alternative fuel. :smt023 This is not a real conversion because the truck is never running on propane itself. Always running on #2. It uses propane,to squeeze more mileage and power out of the diesel fuel thats already there by burning it more completely?? I also notice a little less black smoke at times


    :king:
     
  8. PappyGT13

    PappyGT13 Light Load Member

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    All the LPG conversions I've seen that run only on propane have been gasoline engines. The diesels use it more like a gas engine uses NOS, only not nearly as destructive for the engine. Haven't really gotten into this yet, too many projects already going, but what I have read is very favorable.
     
  9. PackRatTDI

    PackRatTDI Licensed to Ill

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    It's probably easier to convert a gasoline engine to run on propane/CNG.
     
  10. 75woody

    75woody Bobtail Member

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    Yes, Diesels use it to super-cool and condense the air to get a more powerful AND more efficient burn. It's popular with pickups but it's used for more power and the extra fuel mileage is just a plus. On pickups you can buy it as a complete "bolt on" kit and if it's not used in short bursts for racing of some sort it is used for an extra boost in HP and Torque to get a trailer up a canyon or mountain. It can be left on all the time for better mpg even on a big truck but it would require a really big tank (wouldn't know where to mount it) and depending how much you actually used it might not save a whole lot of money.
     
  11. roadking1474

    roadking1474 Bobtail Member

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    This kit is variable so unless I'm pulling a lot of boost, it doesn't use much........my tank is around 40 gallons and lasts around 1500 miles. I have the tank mounted on the headache rack......nice custom brackets, but they had some side mount ones too. Flying J's and the like are cheap for propane. I am seeing a reduced cost per mile........since running it....that's why I wondered why more people didnt use it or know about it. I will try and get some real numbers down for the next run and report back, but I know it's good.
    www.prodieseltech.com , you can see the tank set up.

    :smt029 :laughing4:
     
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