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Brand new owner, 2018 F450 6.7 diesel, 100.6 miles on it. I run fuel conditioner in every fuel tank on all my other trucks, What is the best one for the ford 6.7, to protect the fuel system and not harm the exhaust system????
Lots of threads on this topic and you’ll get a hundred different answers but overall most seem to run the ford recommended PM-22. I find it’s cheapest by the gallon at the dealer.
I've always felt (whether I used it or not) that fuel additives were slightly gimmicky. In some instances, like uncertain fuel grades, it is needed and useful; but overall it didn't do much. I could be wrong, but it's been my experience with it.
I also run the Motorcraft PM-23 Anti-Gel in the winter months.
If anybody is interested, Amazon has the 1 GALLON jugs of PM-23 for $12.63 and Prime members don't pay for shipping.
Yes, I said $12.63 per GALLON. I paid $58.95 for a gallon last fall.
Sure, it's summer, but as long as it's sealed, it shouldn't have problems lasting a few years. I know PowerService says their anti-gel products have an indefinite shelf life if unopened.
I keep anti gel PM22A in the truck in case, I keep PM22 in the truck in case I need it. I am buying from commercial card-locks only. Rarely do I use retail fuel. Most diesel is now 5% Bio diesel so lubricity issues are far less common. Adding it every tank seems like a non necessary expense to me. Other fuel additives can be used but you have to be sure they are not Water emulsifying. This allows the water to get through the filter and the water separator and do damage to the HPFP and down the line.(Emulsifying types of fuel additives typically showing alcohol such as methanol present)
Not judging... just saying when comparing diesel to gas... never heard about having to run a fuel conditioner as well... what is the purpose of it? I’ve run many diesel generators but never owned a diesel truck. Thanks
So a fuel conditioner has many applications.
If you have a large tank for farm use, a Product to control algae, water etc is used.
Some provide lubricity due to the low sulfur fuel content.
So when speaking of adding a fuel additive please consider what it is you are trying to accomplish.
It will not give you a bazzillion horse power, nor half a bazillion mpgs, etc.
If injector lubricity is the goal there are some that will do that.
With a daily driver algae and water should not be an issue unless one uses a fuel station with low turn over.
Anyways, enough ramble hope I helped clear this up like mud!