Compression Ignition Addict
Join Date: Jan 2012
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Seafoam in your diesel fuel
So, I have been of the thinking that Seafoam is pretty much an Old Wives Tale type of product for the most part. IMO, it claimed to do more for you that it would really do. I've used it on upper intakes of worked 22re motors, and some others, but never got real world results out of it.
My truck is a 1994 F350, 7.3L PSD, CC, DRW, and I keep my 100gal transfer tank full in the fall/winter for added weight when it snows (its a 2wd). I average around 14mpg in it. Last week, I was in Oreilly's to grab some anti-gel stuff for my diesel. I religiously use Power Service Diesel Kleen additive, but they were out of the white bottles that day. So, I looked at the Seafoam and decided to use it for my old 7.3L Powerstroke as it had some anti-gel properties for the fuel and says its "safe".
****I would not use this in a common rail system as I have no idea if it will hurt it or not****
All I can say is WOW. I track every tank and calculate mileage. My truck has two tanks. Best I have ever gotten out of my rear tank was 220mi, but on my normal commute to/from my shop I get 200mi to a tank. Been this way since I got the truck. I immediately noticed a difference on the rear tank. Getting 240mi out of it this time. And, the front tank is doing the same. I currently sit at 400mi with 1/2 of the front tank still to go.
Plain and simple is that it crushed my normal mileage that I normally get. I bet I am seeing a 2mpg difference if not more. Nothing has changed in my everyday driving either. There hasn't been anymore hwy than street or anything like that with these tanks. So, I know its the Seafoam.
Also, my injectors were rebuilt by Rosewood less than a year ago, so I know they are in good shape as well.
I doubt I will use it for every tank at $7.99/can, but we'll see how things change with my next tank as I will go back to the Power Service again. Maybe it just cleaned out the entire injection system. But, I can honestly say now that the stuff actually works, and works well. Even at $7.99/can, I am saving money with the increased mileage with diesel at $3.69/gallon here in CO.
1999.5 F350 DRW, CC, LB, A/T, 7.3L. Bank Exhaust brake, 4" Exhaust, BD power Thruster II turbo, PHP Hydra