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Thread: Will i save fuel

  1. 24th June 2010, 07:27 PM #1
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    freedriver
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    Will i save fuel

    I'm going to put over size tyres on my disco td5(815 O.D.) . I'm wondering if it will use less deisel because it will be reving a bit less or use more due to extra load on the motor? Any one noticed any difference ?
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  2. 24th June 2010, 08:07 PM #2
    Sprint
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    it will use more
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  3. 24th June 2010, 08:53 PM #3
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    I definitely use more when the 265/75-16 tyres are on compared to the standard. Never measured precisely how much. And yes have accounted for the speedo/odometer impact.

    But then my auto uses more than the guys I drive with who have manuals.

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  4. 25th June 2010, 02:04 PM #4
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    Damn! I thought it might save some .

    I was thinking this after a road trip to carnarvon from perth in a mates brand new(20km on it at the start of the trip) isuzu dmax. We were towing a 21 foot boat and we were getting better milage in fifth gear , which is very tall in the dmax(2000rpm @100kpm) . compared to forth , which is close to fifth in the disco.Fifht gear was loading the motor to the max.

    By the way we did the same trip in the disco a few months ago with the same boat and used about 3.5 litres less per 100 km
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  5. 4th July 2010, 12:30 PM #5
    silver89
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    Before I got bigger tyres: Ave 625km when filling up about 60L at the pump. Mix of highway and city traffic).

    When i got 265/75R16 BFG A/T: Ave 550kms.
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  6. 4th July 2010, 01:31 PM #6
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    Quote Originally Posted by silver89 View Post
    Before I got bigger tyres: Ave 625km when filling up about 60L at the pump. Mix of highway and city traffic).

    When i got 265/75R16 BFG A/T: Ave 550kms.
    Are you calculating from the odometer??? Or corrected figures?

    Off the odometer means corrected would be 605km per tank.

    Is your vehicle chipped?
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  7. 5th July 2010, 02:10 AM #7
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    BMKal
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    Quote Originally Posted by freedriver View Post
    Damn! I thought it might save some .

    I was thinking this after a road trip to carnarvon from perth in a mates brand new(20km on it at the start of the trip) isuzu dmax. We were towing a 21 foot boat and we were getting better milage in fifth gear , which is very tall in the dmax(2000rpm @100kpm) . compared to forth , which is close to fifth in the disco.Fifht gear was loading the motor to the max.

    By the way we did the same trip in the disco a few months ago with the same boat and used about 3.5 litres less per 100 km
    On a trip from Carnarvon to Perth, you'll probably use a little less fuel - it's the stop / start driving around town where you will use more.

    I've put larger rolling diameter tyres on mine ('02 Td5 manual) and I use less on trips between Kalgoorlie and Perth, but a bit more around town. Depends a lot on how you drive it.
    Cheers .........

    BMKAL

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  8. 5th July 2010, 06:33 PM #8
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    I mainly use it for trips up the coast with a boat in tow . It has a trs chip and erg removed . i personally feel it revs a bit to high at 110kph and it seems to have pleanty of tourque at lower revs.

    I have been wanting to do mods but have had no time at all .Now im going on month on month off work i want to get stuck in . 50mm lift and bigger rubber first up.
    Any coments on mickey thompson atz LT275/65R18
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