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additives

recommendation of additive or other for 2010 2500hd silverado dmax 6.6

additives

Postby stormy2000 [OP] » Nov 17 2012, 2:44am

I talked to the chevy dealer and they said, I didn't need to anything to the engine, that it was good as is and regular,
scheduled maintenance would ensure its proper operation.

but just in case, what is everyone else using? thanks, I pull a keystone sprinter 300 KBS GVWR btwn 10K - 11K, so
anything to help would be appreciated.


bill
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additives

Postby wheeler82 » Nov 17 2012, 2:55am

Good idea to use a good diesel additive like diesel 911 or others I know amsoil makes a good one. Especially if u live in a colder climate it helps to prevent gelling and lubricate injectors.
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Re: additives

Postby stormy2000 [OP] » Nov 17 2012, 3:20am

great, thanks for input.

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additives

Postby wheeler82 » Nov 17 2012, 3:57am

Yep u betcha!! :)
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Re: additives

Postby starspangled6.0 » Nov 19 2012, 7:26pm

I don't think you'll have any diesel gelling problems in Florida, unless you're traveling out of state. AMSOIL's Diesel Concentrate is pretty cheap. I've ran about 3 bottles since I picked up my Duramax in September.
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Re: additives

Postby steved » Nov 20 2012, 2:00am

Do NOT use Rescue 911 unless you have gelled fuel, it contains alcohol and is not good for injectors.

You don't need additives unless it gets below about 20*F. At temperatures approaching 14*F, the wax in ULSD will start to crystallize out and plug filters. ULSD is pretty dry, and they additize it at the rack...and in the winter, they just add a different additive. However, the additives don't always work...and ULSD additives you can buy don't always work.
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Re: additives

Postby stormy2000 [OP] » Nov 20 2012, 5:09am

well seems then the dealership was right in that I do not need additives for now, as it has been in upper 50's here so far. thanks much
for the input.

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additives

Postby wheeler82 » Nov 20 2012, 6:36am

Sorry didn't see u were from Florida, yeah here in Michigan that's what I used especially in winters, but yeah problly don't need that in Florida .
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Re: additives

Postby JCunningham » Nov 20 2012, 6:47am

the dealer does not want to tell you to use a additive because they dont want people to think they have to pay more to fill there truck. Diesel in America is the worst crap they can run. They cant sell 49 cetain in any other country. And 49 is just a bs number they use. Its been found in the US to be as little as 29. There is no official way of rating it in the US. You should use a additive. Amsoil, Stanadyne, even the stuff in the white bottle at walmart is good
Rescue 911 is only for if you jell do not run it as a additive.
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Re: additives

Postby steved » Nov 20 2012, 2:00pm

I for one don't think our fuel is all that bad, it is supposed to meet ASTM and EPA standards at the pump...you can do a whole lot worse.

I have a combined total of over a million miles on several Cummins-powered Dodges, I can tell you that the additives are not necessary except as anti-gel. Our fuel is not that bad, the last truck (a 2004.5 common rail Cummins) had 270k miles on it with additive the first half of those miles and no additive the second half...the additive did not prevent an injector failure at 145k (religious use, every tank), nor did not running it cause the injectors to fail prematurely at 270k (never ran additive again after 145k miles). The main thing to remember about ULSD is the fact it is hygroscopic, in other words; it absorbs water if left exposed to the atmosphere (or if you have an open vent on your fuel system). And the water is more problematic on a high pressure common rail fuel system (like those used in almost all modern diesels) than anything else.

Here is a link to a relatively recent fuel additive study. I don't like posting links to other sites, but in this case, it is very informative in respect to both ULSD and the additives you can buy over the counter.

http://www.dieselplace.com/forum/showth ... p?t=177728

One other thought that several of us in the Cummins crowd considered was adding a store-bought additive to fuel that already has an additive in it from the rack? Do those additives play well together (i.e. do they compliment or detract from each other)? One thought was that adding additives to additized fuel might actually be making the fuel worse overall...and that logic is why I quit running additives except when the seasons changed (fall to winter, until all stations changed over to winter blends) or as a precaution when it was supposed to get really cold. And for comparison, the common rail I owned shared several very similar components with the DuraMax (CP3 injection pump and Bosch injectors), so they are quite comparable on that level.
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