Gas mileage

Discussion in 'General Discussion' started by Aussie Viper Truck, Mar 15, 2021.

Car Parts
  1. Aussie Viper Truck

    Aussie Viper Truck Active Member

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    I have just returned from a road trip in my 04 SRT10. it was mainly highway driving and I got it down to 14 litres to 100 kilometres average or something like 16 mile per gallon, which I didn't think it was to bad for a ROE supercharged truck.
     
  2. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    14L/100km = 20.17 Imperial miles per gallon.

    'Ya beat me by 1 :)
     
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  3. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    20200701_133310 (1280x1280).jpg
    Yeah that's good for SC
    I have a NA truck and only a smidge better. I have seen 12's on the Canterbury Plains but not on this tune
     
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  4. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    Just off the Dyno and even more fuel waste being stopped. There we go 12.3l/100km 19.12 mpg
    20211123_153743.jpg
     
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  5. Modern Barbarian

    Modern Barbarian Active Member Supporting Member

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    The auto in the QC kills that. I'm lucky to see 12.
     
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  6. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    The RC's are lighter too. Our speed limit in NZ is 100kph approx 60mph so I can now putt along at 1200rpm in 6th
     
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  7. Modern Barbarian

    Modern Barbarian Active Member Supporting Member

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    Yeah, about 500 pounds or so if I heard right.

    Our speed limits in the states are a little higher, and I'm not always the best at following the rules. :D
     
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  8. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    Cost me a fair chunk to get to the Dyno

    20211123_092553.jpg

    Good thing I still had a quarter tank left. I would have to pawn something...
     
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  9. AMS3

    AMS3 Well-Known Member

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    I don't go below 3/4 tank these days thanks to Lets Go Brandon!
     
  10. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    Read it and weep!!!!

    20221121_044232.jpg 20221121_044221.jpg

    Recent trip to Ashburton and back and then just a run to work. Had to keep revs 1000-1500 and the lightest of pedals. The truck will run at 1000rpm in 6th and easy pull away from there, happy as. I am happy with the tweeks on my tune. It is safe and much more tractable at low revs on the highway. Bit like the old vacuum advance did for older engines. I could never use 6th on the road it was never happy at 1200rpm. With gas at $3/litre I need all the help I can get.
     
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  11. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    It's that new U/D Pulley working for you!!!









    maybe...
     
    Last edited: Nov 24, 2022
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  12. HemiLonestar

    HemiLonestar Member Staff Member Super Moderator

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    Never known anyone with one of these trucks who was actually concerned about fuel mileage lol.
     
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  13. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    That's true, i never considered them to be an economy vehicle. :)
    After the first engine workover, it got better mileage than a new Nissan Armada that was at the pumps with me.
     
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  14. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    When you have really expensive fuel prices it will become an issue. What would you say if gas was $12 a gal
     
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  15. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    Maybe....It was really slow and boring as bat shit, no smiles per gallon
     
  16. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    What was slow???
     
  17. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    No Right Foot. 90-100kph putt...putt
     
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  18. Kiwi SRT10

    Kiwi SRT10 Well-Known Member Supporting Member

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    Another thing I noticed that the computer keeps counting when you stop at traffic lights or you leave it idling. That may explain why these trucks look so bad. Most vehicles change to show litres/hr when stationary and not just keep counting and ruining your gas mileage.
     
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  19. HemiLonestar

    HemiLonestar Member Staff Member Super Moderator

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    Short hops and local boat towing only lol. I have the 392 car for long trips lol.
     
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  20. rottenronnie

    rottenronnie Well-Known Member Supporting Member

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    If the overhead mileage numbers are spoiling your fun, put in larger fuel-injectors and have your engine re-tuned for those. You will see a major boost in fuel economy numbers; well according to the overhead anyway...
     
    Last edited: Nov 28, 2022
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