Evening/morning fellas; i cant sleep....
Ive been reading for the last 1/2hr or so about additives and its got me curious about what some of the veterans here have learned throughout the years with their 7.3s
On my old 7.3 i ran Lucus religiously, never had any fuel system issues in the 80k i owned the truck and while i dont directly attribute the use of the additive to that sucess im sure it didnt hurt.
On my trip across the country last year we ran the Opti-lube winter with good results, IE nothing bad happened, tho it was a new to me truck and i had no idea on what to base the milage anyway..
Now i run powerservice in every tank not because its good (because its not) but because its available everywhere near me.
Question: how valid are the claims that the ashless 2stroke oil is a viable additive? Are there any side affects to running it? Are some much more desireable than others and finally does it help milage at all or is the strategy purely from a lubricity standpoint? If running it in the winter does it contribute to jelling or not? I read some crazy potions guys are using, 1/2 this, 1/4 that a pinch of whatnots.... Just trying to come up with something reasonable and affective to run.. Course maybe with splitshots theres more to consider... Anyway, love to hear what you have to say and whats on your mind; thanks!!

 

i use powerservce, i use the white in winter and grey in summer. can smell the difference in exhaust and pick up a mile or 2 per gallon.

 

I run motorcraft or powerservice additive. 2 stroke oil is fine too. The use of something that qualifies as a good lube is better than nothing as todays fuel sucks.

 

We use Power service I buy the 250 gallon 1080 Part number. It's the only additive I use. I use it in all our powerstrokes, Cummins, Perkins, and Cats. they love it, would not use anything else.

 

powerservice here as well. on my tired old 350k mile injectors (or at least a few hundred thousand if the PO replaced them ever), i could notice the difference when i forgot to dump in the powerservice when filling up.

it smells good, too :-)

 

no additives at all. 184,000 miles on the 02, 494,000 miles on the 88 once a year i will fill the fuel filter with ATF on the 88 and run it for 30 seconds then shut it off and let it sit over night.
i did the same with the other 88, the 89, the 90, the 91, and the 92. never once have i ever had any problems with any of my trucks from not running additives in the fuel. all are still on the road except for the 89, it was totaled this spring when a drunk ran a red light and t-boned it. all have over 300,000 miles on them too, and went at least 150,000 miles on injectors and pumps.

 

I run powerservice in mine also, I think it helps with the mileage a little and seems to run smoother. I think the best contributor to keeping things fresh is keeping your fuel filter and oil changed.

 

Thanks fellas, keep um commin!
I hear Ta Tom, these seem to be resilient power plants in terms of injectors or the pumps need for lubricity; unlike the dodge vp..
As a car guy I guess I just like the theory I'm doing something good for my engine..
I suppose in most cases we can go many miles on stock parts w/out the use of any friction modifiers but with the demands of fuel systems with these modded pumps, HPOPS, fuel timing, injectors, Etc... I feel a little extra snake oil with that ULSD must help some...

 

I'm on the fence with this topic. I use it in my bulk tank every fill up. And I have never had troubles with any of my tractors. But when I drove highway we never put additive in the trucks and they all did fine. Idk. I'd like to hear from Jim at rosewood and see his experience. Being that he has probably had a lot more to do with the inside of these injectors than any of us.

 

I quit using additive in my fuel, but I use the premium grade fuel from my supplier. In the winter months I use Howes additive for anti gel in straight #2 fuel, and never had a problem, even when it hit -35 last winter. I think most refineries have added a lubricity package to their fuel to replace the sulfur. At least that is what I was told by the fuel guy at my station. I have added 1/2 quart of 2 stroke oil to each tank when filling, and you could hear the engine run a little smoother, and it seamed to help the mileage a little. Just my .02 ( or maybe a little more)

 

What 2stroke oil have you found works for you?

 

I used to run power service and Lucas in my old 7.3 then switched to stanadyne blue label,now that's all I run as the performance and fuel mileage was a lot better,especially in my 6.0 you can now get it at auto zones.

 

I am with Tom on this one. Our fuel systems are so simple, especially if you are running Efuel. I used to be an additive junky, but I let it go last year. I used 2 stroke like crazy, but I don't think it was doing any good. I'm also skeptical of these guys that claim mileage two per gallon using Powerservice. I have used it on long road trips as well as around town driving and have seen zero difference.

 

Put one more hash in the column for Power Service. That's what I run in mine. A bit of anecdotal evidence for you all, as well. When we went to GA to pick up my truck and drive it home, I didn't put PS in the first fill-up we ran through it. 100% highway driving netted me 17.5 MPG. Next fill-up I dumped in the PS I brought with me and forgot to add and the result... 18.9 MPG. Again 100% highway driving. Now maybe I pushed the first tank a lot harder, but I don't recall that being a factor. Most of the way home I ran the cruise too. Like I said, it is anecdotal evidence since I wasn't really looking to make it a scientific experiment, but I figured I'd throw it out there.

I'd love to make 2 identical, unloaded trips and test the theory now.

 

I use 12oz of Redline Racing Two Stroke oil per tank every fill up.
Can't hurt.