You are fueling up with diesel, how full do you go?

Discussion in 'Questions From New Drivers' started by Labrador, Apr 15, 2024.

  1. Labrador

    Labrador Medium Load Member

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    When the nozzle clicks off, if I pull it out a bit and top the tank off I can get in another 10 gallons or so. What are the downsides to filling the tank to the top?
     
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  3. gokiddogo

    gokiddogo Road Train Member

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    Right to the lids. Never had a problem. I do, however, typically fuel in the middle of the day or in the morning prior to starting my day, rarely at night when I'm pulling in for the evening.
     
  4. SmallPackage

    SmallPackage Road Train Member

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    The trucks I have that sit long periods I push in as much fuel as I can. Keeps moisture buildup down. This new Pelosi fuel goes sour with microbes faster than ever. Only downside i’ve experienced is during hot summer days some fuel may expand out of the breather vent. If the fuel being returned doesn’t get hot enough to expand out the breather with that extra 10 gallons you get in and can get you another hour down the road i’d say no worries.
     
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  5. Blu_Ogre

    Blu_Ogre Road Train Member

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    Only issue I've heard of is topping up when cold early morning/late night and a little expansion of the fuel as the day warms up.

    I fill till it comes up to the bottom of the filler neck if the neck goes into the tank, Or an inch or so down if the neck bottom is flush with the top of the tank. That way it is less likely to slosh and push out the vent.
     
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  6. 201

    201 Road Train Member

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    Used to be, fuel was so cheap, you'd spill the rest on the ground to get an even number and keep the dust down. I don't recommend that today, generally, 90% full should take care of any expansion.
     
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  7. Last Call

    Last Call Road Train Member

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    If you needed to start a thread to get a answer . Then this might be a big challenge for you but give a try ,Look on the tank it’s stamped on a plate it give’s you the rated max capacity
     
  8. Moose1958

    Moose1958 Road Train Member

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    Many times when I fueled I was fueling according to a fuel solution based on where I was. That and many times I was hauling loads so heavy part of the dispatch was to not have full tanks when I loaded. I guess maybe 60% - 70% of the time when I fueled I was filling the tanks. I would start the pumps go wash my windshield headlights and walk around my truck doing a quick check. I never really played that game of getting all I could because all I had to do was call my fleet manager and get a fuel solution if I felt like I might get low. Besides with all the other things going on measuring out a full tank was never really high on my to-do list. I filled, filled up my reefer tank, and got the heck off the fuel islands so the guy behind me could start fueling.
     
  9. tscottme

    tscottme Road Train Member

    But the stated tank capacity doesn't tell you how many gallons are in each tank when you start fueling.
     
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  10. Last Call

    Last Call Road Train Member

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    Your exactly right and that’s where common sense enters in to the equation and
    And there seems to be a lack of that from the title of this thread
     
    Last edited: Apr 16, 2024
  11. Ridgeline

    Ridgeline Road Train Member

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    So one cold morning (40ºF) I have time to fuel up long before I went off to my pickup. I fill my tanks, I always leave 2 inches from the filler. Next to me is a 'genius' who filled up his tanks to the brim. He goes off and parks, I park next to him on his right, then go into the sleeper. I wake up to the smell of diesel, I can't get out of my truck because there is a puddle of diesel from his trucks going under mine, and the temp was (75ºF).
     
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