How many of ya'all are running one ?

I don't worry too much about it with a motor like my old 97 Cummins , but if you have a newer motor with a common rail system they are much more fussy......I run an additive in every tank full when driving my 08 Ford 6.4

ran across this study awhile back and the results surprised me......

http://www.johnfjensen.com/Diesel_fuel_additive_test.pdf

some of the old standbys that I liked ( such as Howes , Power Service , Stanadyne) don't look so good....as a result I switched to running Opti-Lube in my 6.4

Thanks for the link, interesting....


Where do you pick up Opti-Lube?



As stated in the previous post, I run Walmarts 2 cycle oil. About every other tank, figure there's always some left over after a fill up from the previous tank. Don't think I pick up any mileage, but it does seem a hair quieter.


Haven't done any extensive tests, but I think the 2 cycle oil makes a big difference in my folks' 7.3 powerstroke.

That study is from 2007, before ULSD fuel. I doubt any of those additives are the same today as they were back then.

The shop that works on my truck recommended Delphi and I've used it for years. The guy who built my stroker CP3 pump also recommended adding 2-stroke oil.

ULSD would have to have been out in 2007 , as the 07.5 pickups like Dodge and Ford had the new dpf systems on them , and you have to have ULSD for those...also think the class 8 trucks had dpf s by then

cal , found out that Opti-Lube has NO dealers in the midwest , so I ordered directly and it came on the UPS truck .

You're right. I was thinking ULSD was in '08 but it was '07. Still, looking for test data I'd be wanting something more current than 5yrs ago.

That's the lastest test that is out. There are rumors of members on diesel forums paying to have another test done. The new Ford 6.7 owners seem to be the closest since we are worried about the new Bosch fuel pump needing better lubrication than ULSD.

I run Stanadyne Performance Formula in my 2006 Duramax. Not sure how much it helps, but its got to be better than none.

I use Powerservice in my 06 Cummins and also run the 2 stroke oil about every other tank. I agree, not sure how much it all helps and especially the 2 stroke oil but it sure hasn't done any harm.

I have a 98 Cummins, 24 valve, and have used the Power Service since I bought it, now at 100+K. The Standyne is about triple the cost here.
I can't really figure out what to do as ther rre fleet operators that run a bunch of trucks and do not reccomend anything.

I used the Walmart version (Syntech) of 2 stroke in the 2007 Dodge 5.9 CTD for two years. I tried Amsoil, Standyne lubricity and Performance formula but my truck got better mileage with the 2 stroke. I currently have a 2011 Ford F 250 with the 6.7 and I'm using Motorcraft additive and Optilube. I would like to try the 2 stroke in the new truck but I just don't have the nerve yet with all of the emission garbage on it. I've read that all of the 2 Stroke is burned but I just don't want to risk it.