Def fluid. Where to buy?

Discussion in 'Ask An Owner Operator' started by visoiuvlad, Apr 19, 2017.

  1. AModelCat

    AModelCat Road Train Member

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    I know a lot of guys who buy it in a drum or tote. They say its cheaper than at the pump as well.
     
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  3. ZVar

    ZVar Road Train Member

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    We just got a 1,000 gallon tank for ours at work. Of course it's day cab work, so we are there every day.

    What I would suggest though is get one of those 2.5 gallon totes and put it in your side box. When you fuel simply top off the def every few fuelings. Every 6 months or so empty that 2.5 gallon jug in your truck and refill it from the pump. Stuff does have a shelf life of one to two years (depending on storage temps)
     
  4. Eeyore05

    Eeyore05 Medium Load Member

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    So, we've had DEF for 7 years now. You must think you know the industry/your profession quite well, as you bought your own truck. Yet, your asking where the best place to buy DEF is?
    Something tells me you don't know your industry all that well... good luck
     
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  5. visoiuvlad

    visoiuvlad Light Load Member

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    As a driver I didn't have a chance to drive just old trucks without def. and the reason I'm asking is that after filling the def tank with Blue def Check Engine light is on.
    Engine ECU SPN 5443 FMI 7
     
    Last edited: Apr 20, 2017
  6. Bean Jr.

    Bean Jr. Road Train Member

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    I'd have to agree with him. Don't you fuel at a truck stop? Have you never noticed the fuel/def prompt when fueling? Haven't you noticed the def nozzle next to the fuel pump?
     
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  7. visoiuvlad

    visoiuvlad Light Load Member

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    I've filled up the whole def tank from the pump and the check engine is no longer showing
     
  8. visoiuvlad

    visoiuvlad Light Load Member

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    You'll never know the industry coz it keeps changing. I just wanted to get my truck to keep it nice and clean. Basically the truck is my second home if not the first)))
     
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  9. Bean Jr.

    Bean Jr. Road Train Member

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    My in-laws own a Mercedes RV. They have run it low on def several times. When the check engine light comes on, however, they have to get it reset.
     
  10. Eldiablo

    Eldiablo Medium Load Member

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    Well what do you know. I'm surprised again today. What a wonderful day.
     
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  11. Cyclesdalecummins07

    Cyclesdalecummins07 Light Load Member

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    My former employer purchased a new peterbilt a year ago, when we asked the service manager about d.e.f he suggested not to purchase it from the pump. He had a few trucks come through with emission issues ( both Cummins and paccar) due to the d.e.f being contaminated by the nozzles at the truck stops.
     
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