How many more MPH do you think ya get...

Discussion in 'Gearhead Garage' started by GreatBambino, Jan 18, 2006.

  1. GreatBambino

    GreatBambino New Member

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    When the tank is closer to empty than when it's full?
  2. integra00

    integra00 Junior Member

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    Starting a small fire in ur moms panties
    well the rule of thumb i believe is for ever 100lbs u save 1/10th of a sec on the 1/4 mile
  3. superlinuxman

    superlinuxman 3D+Linux Master

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    you wont gain any top speed but you will improve your acceleration since your carring less weight
  4. offroadin

    offroadin New Member

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    Acceleration will be improved as F = ma

    so a = F/m

    acceleration is inversely proportional to mass.

    You could gain a few MPH in top speed with an empty tank however.

    Friction at the wheel/road surface is proportional to the amount of weight on the tires. THe factor is quite small, but maybe you could pick up another 1MPH due to less drag from friction of the tires. However, an average speedo in a car wouldn't be able to detect such a small change.
  5. GreatBambino

    GreatBambino New Member

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    doh.. I typed the topic wrong.. I meant to write.. How many more MPG do you think you get when the tank is closer to empty than when it's full?
  6. JustinL

    JustinL Junior Member

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    if you are considering trying to drive around with a 1/2 tank or less to save gas, think about how much more often you will have to go to the pump, thus killing any savings you have.
  7. Drakkon

    Drakkon New Member

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    frankly i think my truck gets better milage with a full tank...at least the gas gauge stays near F for a long time but then once it drops it drops faster seems like...
  8. Seax440Dodge

    Seax440Dodge Banned

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    I always make 1/4 mi runs w/ 1/4 of a tank
  9. Jishory

    Jishory Junior Member

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    i know a few prius owners who claim better mileage by filling their tanks half way
  10. 81 Elcamino

    81 Elcamino New Member

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    when i raced this year i had a little less than half a tank and after 4 runs i was almost empty
  11. GreatBambino

    GreatBambino New Member

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    Well.. It just depends on how much you drive. I know a guy that has a corvette that fills up every couple months :p. But besides that point I wonder if they should create a car for like different purposes or do they already? Like for example just city driving or just country? or do they already? I don't know a whole lot about cars as it's probably obvious but tell me what you think.
  12. Dustin

    Dustin Junior Member

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    The only increase in gas mileage you *may* get would be from a nearly-empty tank being a lot lighter than a full tank. Less weight = less work for the motor = better gas mileage

    But that's a technicality and you won't actually find any real-world savings

    All cars are identical regardless of where they are driven. Older trucks used to have tons of levels of customization, so technically you could configure your truck to match what you need, but it was still very generic... stuff like a secondary gas tank, 4x4, defrosters, propane tanks...