Off road diesel fuel

B585Ford · Sep 30, 2013

Jbenso127 said:
What's the difference and why to they dye it? I thought one was a low sulphur (off road) and one was an ultra low sulphur (on road)? I was always under the impression that offroad higher sulphur fuel would trash a newer hpfp or be hard on CR injectors? Idk lol :shrug:

I thought the reason why the Lb7 had injector issues was because they went to low sulfer which didn't have the lubrication properties that the high sulfer did

6.4 Stroker · Sep 30, 2013

Jbenso127 said:
What's the difference and why to they dye it? I thought one was a low sulphur (off road) and one was an ultra low sulphur (on road)? I was always under the impression that offroad higher sulphur fuel would trash a newer hpfp or be hard on CR injectors? Idk lol :shrug:

I happen to work for a bulk fuel transport company. All fuel starts off clear. At the loading racks you can literally watch the the red dye injected into the fuel through a loadhead sideglass.

Trav-O · Sep 30, 2013

I run Dyed, you're fine wont hurt anything

Erikclaw · Sep 30, 2013

tractors run red fuel for thousands of hours and I have never seen that stuff stain anything. Poor it on concrete let it dry and see. The only thing that caused issues if it did is the difference in sulfur content.

Trav-O · Sep 30, 2013

6.4 Stroker said:
I happen to work for a bulk fuel transport company. All fuel starts off clear. At the loading racks you can literally watch the the red dye injected into the fuel through a loadhead sideglass.

True statement. I deliver fuel. And see it every morning when I load. Injects the dye every 5-10 seconds. Loads with the same line as clear diesel (ulsd)

Diesel23 · Sep 30, 2013

Brett Looks LIke you need that cup of coffee before you go for fuel !! LOL
As Stated will be fine

skevac · Sep 30, 2013

High sulfur diesel (HSD) and low sulfur diesel (LSD) fuel are nearly impossible to get as now even the newwer farm equipment have DPFs on them and need ULSD. Last I knew you could still get HSD out of Canada but it could only be used in a ship or a train. If you don't have a DPF it would be the best thing for your fuel system to run LSD or HSD as these fuels had more lubrication, MPG and power from the higher sulfur content. Leave it to the EPA to make things "better"????!!!! If you could even find some LSD or HSD (which isn't very likely) the only thing the sulfur would hurt is plugging the DPF.

B585Ford · Oct 1, 2013

Diesel23 said:
Brett Looks LIke you need that cup of coffee before you go for fuel !! LOL
As Stated will be fine

The bad thing is I already had 2 cups before I left....I guess I have been burning the candles at both ends too long.

B585Ford · Oct 1, 2013

skevac said:
High sulfur diesel (HSD) and low sulfur diesel (LSD) fuel are nearly impossible to get as now even the newwer farm equipment have DPFs on them and need ULSD. Last I knew you could still get HSD out of Canada but it could only be used in a ship or a train. If you don't have a DPF it would be the best thing for your fuel system to run LSD or HSD as these fuels had more lubrication, MPG and power from the higher sulfur content. Leave it to the EPA to make things "better"????!!!! If you could even find some LSD or HSD (which isn't very likely) the only thing the sulfur would hurt is plugging the DPF.

My "buddy" (he drives a Dmax so I couldn't consider him a friend) always said the reason his injectors went bad (all of them go bad on the LB7) was due to the changes in fuel (switching to ULS)....I never knew for sure until now if he was just making excuses or not...I guess he FOS after all.

Jbenso127 · Oct 1, 2013

skevac said:
High sulfur diesel (HSD) and low sulfur diesel (LSD) fuel are nearly impossible to get as now even the newwer farm equipment have DPFs on them and need ULSD. Last I knew you could still get HSD out of Canada but it could only be used in a ship or a train. If you don't have a DPF it would be the best thing for your fuel system to run LSD or HSD as these fuels had more lubrication, MPG and power from the higher sulfur content. Leave it to the EPA to make things "better"????!!!! If you could even find some LSD or HSD (which isn't very likely) the only thing the sulfur would hurt is plugging the DPF.

I knew the higher sulfur fuels (low and hi sulphur) were better for lubricity than ULSD.. But I thought it wasn't good for the newer common rail trucks, because the high pressure fuel pumps have such tight tolerances and the higher sulphur content damaged them.. But this was all speculation... I never had any other input on it.

3brorce · Oct 1, 2013

Maybe he meant BioDiesel. Now that snot does more than just stain lol.

backwoodsboy · Oct 1, 2013

B585Ford said:
I never knew for sure until now if he was just making excuses or not...I guess he FOS after all.

I'd argue the opposite. USLD is a much 'drier' fuel than LSD or HSD. The process of removing sulfur from the fuel inherently dries it out, as these sulfur containing compounds provide lubricity. I won't bore you with aromatic hydrocarbons, but the gist of it is that 15ppm ULSD is roughly 33x drier than 500ppm LSD.

But yeah, since December 1, 2010 all diesel fuel is the same regardless of its color.

OBS F350 · Oct 1, 2013

Erikclaw said:
Just be glad you don't have a Donaldson filter in plain view. Took two tanks to get the fuel in it not to look reddish

Brought a truck into the shop today for the globe filter being full of coolant. Checked the fuel tanks before I dicked with anything... sure enough some how one of our drivers filled both tanks with off road. I got a kick out of it as I've never seen that happen where I work. We aren't affiliated with farm work at all, this truck is in our flour division. Boss said to leave it, I was hoping to get a few tanks of fuel for my truck for free lol.

loboost · Oct 1, 2013

B585Ford said:
I hope I don't do that again!!! I wouldn't have even knew I did it if it weren't for the fact the pump didn't stop and a little diesel spilled.....it was a red so I was thinkin WTF....then I looked closer and figured it out. This gas station has a place for trucks to pull into and they have 5 pumps in a line. It turns out the middle one is for off road diesel.

Where are you located? Here in nc a station won't let you pump red fuel into anything other than 5gal or less containers, a holding tank like a bed Mount tank, or a piece of equipment.

skevac · Oct 1, 2013

Jbenso127 said:
I knew the higher sulfur fuels (low and hi sulphur) were better for lubricity than ULSD.. But I thought it wasn't good for the newer common rail trucks, because the high pressure fuel pumps have such tight tolerances and the higher sulphur content damaged them.. But this was all speculation... I never had any other input on it.

You would have to ask someone who works on these newwer fuel systems to be sure. It really doesn't matter, unless you found someone who had some fuel left over from before they went to ULSD or got some HSD from Canada all you'll be able to find is ULSD. Being we're on the fuel subject does anyone know if you can run a low percentage (2% or less) of soydiesel in a 6.4 if it's deleted? Read on one of these forums that it was one of the best things for lubrication in the fuel system.

B585Ford · Oct 1, 2013

backwoodsboy said:
I'd argue the opposite. USLD is a much 'drier' fuel than LSD or HSD. The process of removing sulfur from the fuel inherently dries it out, as these sulfur containing compounds provide lubricity. I won't bore you with aromatic hydrocarbons, but the gist of it is that 15ppm ULSD is roughly 33x drier than 500ppm LSD.

But yeah, since December 1, 2010 all diesel fuel is the same regardless of its color.

I meant to say wasn't FOS.

Jbenso127 · Oct 1, 2013

skevac said:
You would have to ask someone who works on these newwer fuel systems to be sure. It really doesn't matter, unless you found someone who had some fuel left over from before they went to ULSD or got some HSD from Canada all you'll be able to find is ULSD. Being we're on the fuel subject does anyone know if you can run a low percentage (2% or less) of soydiesel in a 6.4 if it's deleted? Read on one of these forums that it was one of the best things for lubrication in the fuel system.

I work pipe lines and see low sulphur all the time and have seen high sulphur a few times... But it's starting to be replaced by ultra low, cuz like said early in the thread, a lot of newer equipment is being built to meet emissions standards and using ULS.