Forum Discussion

way2roll's avatar
way2roll
Navigator II
Jun 12, 2020

What's with Bio diesel?

As we continue our search for the perfect part time RV next year, we are narrowing our search into FW's. If we go that route, I've decided the truck of choice would be a newer, used, F350 SRW. So, not only are they hard to find, many of the ones I am finding run on Bio Diesel. Now, I don't know much about diesel trucks in general (my current truck is a 5.4 f150) but what I have learned is that touring the US with a bio diesel truck is a bad idea due to fuel availability. Am I wrong? And why are these trucks so hard to find - let alone one that runs on regular diesel?

Thanks for any thoughts.
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  • Labman7's avatar
    Labman7
    Explorer
    Jun 12, 2020
    Get on any diesel forum and ask.. Bio is a solvent that is better than straight diesel due to its keeps the fuel system clean and adds lube quality to the fuel. Up to 20% bio works in any newer vehicle. Most stations that sell it advertise 5 to 15%. Some midwest states mandate bio blend in all diesel sold in the state. Been around for years now, no issue in a modern diesel. It can reduce mileage a small amount, nothing significant.
  • Wadcutter's avatar
    Wadcutter
    Nomad
    Jun 12, 2020
    With the Ford 6.7L diesel you can run any diesel you're going to find at any station. Some states have mandated up to 20% bio-diesel so you'll find only some mix of bio-diesel. Other states you may be able to still find 100 diesel.
    For the 6.7L it doesn't matter. It will run on any mixture up to 20% bio. It's not likely you'll find a bio-diesel more than 20%.
    You won't have any trouble finding fuel.
  • FishOnOne's avatar
    FishOnOne
    Nomad
    Jun 12, 2020
    My 2012 6.7 PSD can run 100% #2 diesel without any Bio diesel and up to 20% Bio diesel. I typically try to stay away from gas stations that sell 20% Bio diesel.
  • otrfun's avatar
    otrfun
    Explorer II
    Jun 12, 2020
    way2roll wrote:
    . . . I guess my question is, is there such a thing as a bio diesel engine, or is it a regular diesel engine than can run on Bio if you wanted to? . . .
    Any car that can use gas with 10% ethanol can safely use ethanol-free gas. However, not always true in reverse. Same thing with diesel. Any truck rated for 5-20% bio-diesel can safely use regular diesel, but not necessarily true in reverse. Hope this makes sense.
  • Turtle_n_Peeps's avatar
    Turtle_n_Peeps
    Explorer
    Jun 12, 2020
    way2roll wrote:
    I guess my question is, is there such a thing as a bio diesel engine, or is it a regular diesel engine than can run on Bio if you wanted to?

    It's a little misleading to someone who has no idea about these engines.


    They are a regular diesel engine that you can run on 100% #2 diesel. They can ALSO run on a certain maximum amount of bio or anything in-between

    I agree that it is misleading.
  • way2roll's avatar
    way2roll
    Navigator II
    Jun 12, 2020
    It's obvious I am in unfamiliar territory here and maybe my question is moot. Looking on CarGurus, Auto trader etc, many of the F350's I've seen list the engine as the 6.7l, and then fuel type as bio diesel.

    I guess my question is, is there such a thing as a bio diesel engine, or is it a regular diesel engine than can run on Bio if you wanted to?

    It's a little misleading to someone who has no idea about these engines.

    here's an example
    link

    and another
    link2
  • pitch's avatar
    pitch
    Explorer II
    Jun 12, 2020
    They only run on bio diesel or can run on bio? Where are you finding these trucks? I think you are misunderstanding. All trucks from the major manufacturers come from the factory running on diesel, most will are allowed to run a certain percentage of bio such as 10 or 15%. I am talking out my azz here,but I think that 100% bio takes certain modifications.
  • wildtoad's avatar
    wildtoad
    Explorer II
    Jun 12, 2020
    Are they such that you MUST use bio or you MAY use bio? I thought diesels would run on just about anything.

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