Freightliner M2 112 fuel tank and RPM question

Discussion in 'Ask An Owner Operator' started by Bowmonkey, Sep 18, 2018.

  1. Bowmonkey

    Bowmonkey Bobtail Member

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    Sep 18, 2018
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    I have a M2 112 chassis with Dynamax motorhome built on it. Wondering if someone would please share their expertise with me on a little of this learning curve? I have twin 50g fuel tanks...do these equalize while pumping fuel or do I need to fill both sides separately? Also, what is the highest, while still safe for the engine, RPM that I can go up to while driving uphill? Thank you so much for any advice you can share!
     
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  3. scorpiorias

    scorpiorias Light Load Member

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    Oct 25, 2009
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    Best way to know for sure is to check for a cross over pipe
     
  4. Farmerbob1

    Farmerbob1 Road Train Member

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    Or put 10 gallons in one side, fill the other, and idle for 30 minutes and stick both tanks.

    The RPM limit is a question that should be answered by Freightliner. They might also be able to answer other questions about the truck if you provide a VIN.
     
  5. Espressolane

    Espressolane Road Train Member

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    If you are asking that, during a fuel fill up, will both tanks fill from one side. My guess is no, you will need to fill each tank separately. This should be covered in your owners/operating manuals.

    Maximum engine RPM is dependent on you engine and transmission, the information should also be in the manuals.
     
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