Ag Diesel in the 6.4 ??

[Toddbo34]

Has anyone out there tried running farm diesel in their 6.4? If so did it change the performance. The sulfur is higher so I was concerned it may not run well in it.

[dereku]

It should clog the DPF I believe. Delete the DPF and straight pipe it then I see no reason why you couldnt run it.

[Toddbo34]

Originally Posted by dereku

It should clog the DPF I believe. Delete the DPF and straight pipe it then I see no reason why you couldnt run it.

Deleting the DPF....., will that give me better fuel economy?

[AW794]

I remember reading somewhere that a few people were running red diesel in their trucks. From what i remember, it ran exactly the same. Im fairly certain that there is NO performance difference between off road diesel and diesel you get from the pump. The only difference is the tax and red dye. If you get caught running the red diesel, its a hefty fine.

Deleting the dpf will require a tuner. If you just take the dpf off without a tuner, the truck will go into permanent regeneration

But to answer your question, yes deleting the DPF will give you better mileage, however you run the risk of voiding your warranty

[Toddbo34]

Were they running red diesel without deleting the DPF?

[ol38y]

Red diesel is the same. It's ulsd with red dye in it. ULSD is all that is made anymore...

[Toddbo34]

Originally Posted by ol38y

Red diesel is the same. It's ulsd with red dye in it. ULSD is all that is made anymore...

Do you know of anyone running it in there 6.4?

[DetTigerS09]

no, ulsd is all most stations have, theres plenty of places that have lsd and farm diesel

[Toddbo34]

Are there any Ford techs on here that could answer the question? I would sure hate to mess up my truck and or void the warranty.

[DetTigerS09]

Oh you will for sure void your warranty if a drop of red diesel gets in your truck, anything fuel related that goes wrong they will look in tank and see its dyed red and void your warranty, you will have to remove the dpf to run it anyway but deleting the dpf will void your warranty if you take it in without the dpf on. Its a slippery slope.