POWER SERVICE ADDAITVE ?

[MikePA]

Anyone have three identical diesel motors they want to do this test for us with?

As well as plenty of time to waste.

 

[Northland]

As well as plenty of time to waste.

good one

 

[SkyPup]

Very useful and comprehensive, thank you.

Of course, the way to be 100% sure would be UOA's of identical equipment, some running PS at recommended level, some at 2-3x recommended level, and others running no PS at all. Anyone have three identical diesel motors they want to do this test for us with?

And a very large meat locker to house all the running tractors in at sub-zero controlled temperatures during the extensive product testing procedures????

 

[MikePA]

And a very large meat locker to house all the running tractors in at sub-zero controlled temperatures during the extensive product testing procedures????

Maybe we could get PowerService to fund the testing?

 

[KICK]

generally, you wont have a fuel gelling problem in a running diesel engine.

a diesel engine recirculates unused fuel back to the tank, warming the fuel in the tank.

gelling and waxing problems occur when the vehicle sits for an extended time period in a very cold climate and the fuel has time to cool off to the cloud point.

 

[DieselPower]

Not quite what happened around here last winter. Lot's of school bus contractors got out on the road and about a 1/2 hour later with kids on the bus the fuel filters started to gell up and the bus's shut off. It was a total disaster around here last winter. Needless to say they will be adding anti gel additive before the cold weather hits this year.

 

[AndyinIowa]

The newer Tier III and Tier IV engines don't recirculate the fuel at the same rate as older mechanical engines. Operational clouding and gelling is a bigger issue as a result.

 

[Soundguy]

Why do they not recirculate anymore? Different injector setup?

Soundguy

 

[GarthH]

Im havent been personally involved with PS for quite some time. Back in the late 80's we sold the product in our area. The PS rep came up a few times and advised us and other customers that PS is made out of a petroleum distillate and it was impossible to overtreat an engine. It was different than the other alcohol based products that would dry out the injectors, pumps and anything else in its path - one example was Kleenflow here in Canada.

It is certainly possible for diesel fuel to gel while operating. It varies depending on the grade of diesel fuels. In the US they seem to make heavier diesel fuel than us in Canada and it is common for the diesel to gel. Now we should mention that it does take some pretty serious temperatures to gel the fuel. Likely -20 F is where it starts and in our deep cold of -35 it is very common. As mentioned the newer diesel engines on many truck tractor units recirculate the fuel. I do not know it that is true on tractors or trucks.

I notice that PS has some testing on their website at
Power Service Products, diesel fuel additives, prevent gelling, clean injectors, disperse water, boost cetane, reduce emissions, improve fuel economy

Garth

 

[john_bud]

In the years I have been using PS, I only had one time where the gas gelled and that is because I left a full tank of summer blend in the plow truck then tried to plow in -3 degree temps, the truck barely started before stalling. I put a dose of Power Service Diesel 911 and let it sit for 15 minutes. After that it started right up and worked all day. I keep a bottle of that and a PS white bottle in the truck all winter.

This may be old information (formulations can change with the times), but the Red Diesel 911 is an alcohol based product that will allow water to go into solution with the diesel. It's how it frees up frozen lines and filters.

That's great, except for high pressure common rail injection systems like the Duramax. The water can damage the injectors and if GM tests the fuel for alcohol -> they may not warranty them.

This may or may not apply to Dodge or Fords new diesels. Just a heads up.

jb