How much DEF to add?

Discussion in 'Questions From New Drivers' started by IluvCATS, Jun 5, 2018.

  1. IluvCATS

    IluvCATS Road Train Member

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    Question. Exactly how much of the DEF fuel additive should I be putting in the diesel for best results?
     
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  3. Oldironfan

    Oldironfan Road Train Member

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    About 50% is a good rule of thumb.
    Edit.
    I misunderstood. Don't worry about it it's not your truck.
     
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  4. mpd240

    mpd240 Road Train Member

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    This is dangerous. Some jack ### will folllow your advice. So for you out there that don't know better this is a JOKE.

    I'm going to record this as my monthly mandetory near miss report for my safety department.
     
  5. okiedokie

    okiedokie Road Train Member

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    Had a guy do just that on a job. Mechanic had to drain tanks. You guessed it. FIRED!
     
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  6. My-Ke

    My-Ke Light Load Member

    These crack me up.. but these really are dangerous posts. Some poor driver, maybe not even a Swift driver, just a noobie.. might not know what DEF is then GOOGLE "DEF", come across this article, and think they just learned something new. So I'm going to be the downer, and say out loud for the new guys.. DO NOT PUT DEF IN YOUR FUEL TANK. DEF GOES IN THE DEF TANK ONLY!!!
     
  7. SteveScott

    SteveScott Road Train Member

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    It's the same ratio used for the blinker fluid.
     
  8. tucker

    tucker Road Train Member

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    I’m with you and the other one.
    This thread really should be deleted.
     
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  9. Buckeye 60

    Buckeye 60 Road Train Member

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    but in an emergency you can pee in the Def tank........ that's when you're in a def jam
     
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  10. buddyd157

    buddyd157 Road Train Member

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    i would hope...none.
     
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  11. skellr

    skellr Road Train Member

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    After the fuel shuts off you can top it off the rest of the way with DEF. That's why pumps are setup to pump the fuel first.
     
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