Diesel Fuel Question
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So most use a low dose biodiesel blend and have no idea they are. Like Chad said, our trucks are good up to B20. It adds lubricity for the CP4.
Last edited by Overkill2; May 21, 2025 at 07:30 PM. Reason: Add to post
but anyway, b2 or higher had better lube value than any lube additive
Bio diesel has less btu so depending on how much you have you are getting less ho per gallon
bio fuel attracts water moreso than regular diesel
bio fuel produces less nox than regular fuel
bio fuel if sits for a long time and has water in it will grow algae faster than regular fuel
bio fuel if sitting for a long time will develop brown tar and that tar can gum up your cp4
in days gone by it was thought that bio fuel would be a good cleaner of your fuel system due to the latent methanol in it from the bio fuel conversion process.
me personally would go out of my way to run it as long as I was certain it would not sit in my tank for a while.
but anyway, b2 or higher had better lube value than any lube additive
Bio diesel has less btu so depending on how much you have you are getting less ho per gallon
bio fuel attracts water moreso than regular diesel
bio fuel produces less nox than regular fuel
bio fuel if sits for a long time and has water in it will grow algae faster than regular fuel
bio fuel if sitting for a long time will develop brown tar and that tar can gum up your cp4
in days gone by it was thought that bio fuel would be a good cleaner of your fuel system due to the latent methanol in it from the bio fuel conversion process.
me personally would go out of my way to run it as long as I was certain it would not sit in my tank for a while.
but anyway, b2 or higher had better lube value than any lube additive
Bio diesel has less btu so depending on how much you have you are getting less ho per gallon
bio fuel attracts water moreso than regular diesel
bio fuel produces less nox than regular fuel
bio fuel if sits for a long time and has water in it will grow algae faster than regular fuel
bio fuel if sitting for a long time will develop brown tar and that tar can gum up your cp4
in days gone by it was thought that bio fuel would be a good cleaner of your fuel system due to the latent methanol in it from the bio fuel conversion process.
me personally would go out of my way to run it as long as I was certain it would not sit in my tank for a while.
There were 2 pictures I took today during fill up. This is the second one.
From there;
"The Federal Trade Commission (FTC) regulates pump labeling within four categories; B1-B5, B6-B20, B20+ and B100. FTC biodiesel pump labels are blue in color. Orange labels denote the broader category of biomass-based diesel which could also include renewable diesel."
Another article here.
From there:
"Biodiesel, Biomass-Based Diesel, and Their Blends
Labels for biodiesel and biomass-based diesel and their blends must be printed in black on a light blue background.
For biodiesel blends above 5%, but no more than 20%, the label must disclose the percentage volume of biodiesel followed by the term “Biodiesel Blend,” for example, “B-20 Biodiesel Blend,” or simply state “Biodiesel Blend.” Either way, the label also must state “contains biomass-based diesel or biodiesel in quantities between 5 and 20%.”
For biodiesel blends above 20%, the label must disclose the percentage volume of biodiesel followed by the term “Biodiesel Blend,” for example, “B-70 Biodiesel Blend.” The label also must state “contains more than 20% biomass-based diesel or biodiesel.”
For 100% Biodiesel, the label must state “B-100 Biodiesel” or “contains 100% biodiesel.”
For biomass-based diesel blends above 5% but no greater than 20%, the label must disclose the volume percentage of the biomass-based diesel followed by the term “Biomass-Based Diesel Blend,” for example, “20% Biomass-Based Diesel Blend,” or simply state “Biomass-Based Diesel Blend.” Either way, the label must also state “contains biomass-based diesel or biodiesel in quantities between 5 and 20%.”
For biomass-based diesel blends above 20%, the label must state the percentage volume of biomass-based diesel followed by the term “Biomass-Based Blend,” for example, “70% Biomass-Based Diesel Blend.” The label also must state “contains more than 20% biomass-based diesel or biodiesel.”
For 100% Biomass-Based Diesel Blends, the label must state “100% Biomass-Based Diesel” and “Contains 100% biomass-based diesel.”
[Note: Edited January 2024 to reflect [url=https://www.ftc.gov/news-events/news/press-releases/2024/01/ftc-publishes-inflation-adjusted-civil-penalty-amounts-2024y-asked-questions]Inflation-Adjusted Civil Penalty Maximums.]
October 2016"
So it seems the label you found is correct by the above lined FTC article. You could always go and talk to the person in charge of the fuel deliveries. I regularly buy fuel at a popular carwash chain here in western New York, Delta Sonic. At least a few years back, I spoke with the female in charge of fuel for the station I go to. She stated they get fuel from two different distributors. And they were a B2 through a B5. One was a B5 IIRC. You might be able to find out how much of a blend you are buying by just asking.
And truth be told, water can possibly but not definitely, be a problem in not only the ULSD fuel we buy today, but since most fuel sold is probably a blend of at least B2 to B5, this makes water a more potential problem. Many think that just because they have never had a problem or never see water in their separators or rarely do, that it won't happen to them.
There's two ways to look at it IMO, use a demulsifier type fuel additive or none and keep an eye on the water separator in the fuel or use an additive that breaks water down to the molecular level, encapsulates it with a burnable organic compound to then be sent harmlessly to the combustion chamber to be burned off with the fuel. I've been using K100 since very early on in my truck's life. the only time I drain the DFCM is when I change the fuel filters every 3rd oil change. My truck currently is close to 139k miles.
Now, that all said, YMMV but if the truck sits a lot it's better to keep the fuel tank full and treated. All I'm doing is saying what I do and I make zero claims on what I do is best or the way to do it. I'm just sharing info. take it or leave it is all. Also, too many IMO think modern day fuel is like old school diesel, but it ain't. Yes, I know what they say on opinions. This one is mine.
Good luck with your truck...
Last edited by Overkill2; May 22, 2025 at 08:01 AM. Reason: add to post
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My truck is not a daily driver and sits for months at a time - however the truck has never seen snow in the ~ 4years I have owned it so no experience with gelling. Never used any type of additive to date.














