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AMSOIL has the following products available for the GM Diesel engines:You can feel confident using AMSOIL diesel fuel additives. Our products are alcohol free, emulsifier chemistry, as our product description pages of our website indicates. Also, no metal additives in our chemistry.
Okay - so the way I read that response is that there are no alcohol emulsifiers - but there are indeed emulsifiers. And GM says no to all emulsifiers as they will defeat the design function of the fuel filter and its water separator.
I checked the Injector Clean additive and found this blurb:Okay - so the way I read that response is that there are no alcohol emulsifiers - but there are indeed emulsifiers. And GM says no to all emulsifiers as they will defeat the design function of the fuel filter and its water separator.
It would appear that the additive actually prevents the function of emulsifiers, so I think we're good on that one.Separates Fuel and Water
AMSOIL Diesel Injector Clean is an alcohol-free product that protects fuel systems against water contamination. It helps prevent fuel/water emulsions so that separating filters can safely remove water before it reaches the pump and injectors, where it can cause corrosion. Water can be drained easier, ensuring drivability.
Since they did refer to the product description guide, that's what I took from it. The product guide did indicate it was emulsifier-free.I wonder if that is just an unfortunate choice of wording on the part of the person that responded to you. Did they mean to say "emulsifier free"? "Emulsifier chemistry" tells me that it *does* have emulsifiers.
That carbon is not due to the fuel. It's from the EGR soot mixed with oil from the intake that deposits in the intake. The fuel is injected directly into the combustion chamber, it never sees the intake side. So, it can't clog, nor keep clean the intake valves. An EGR and DPF delete will however prevent that build up of crud.Talking about cetane boosters etc. I see there are Top Tier diesel fuel standards now,just like there are Top Tier gasoline standards.They say less emissions,cleaner injectors etc.Unfortunately its not available everywhere.I quizzed Co-oP fuels here in Canada and its only available in Regina, Saskatoon and Calgary.Shell Canada says their V-Power diesel meets the Top Tier standard.From what i understand if its Top Tier it has to say so on the pump.I haven't yet checked Shells V Power pumps here in Winnipeg to see if it does.Reason i'm bringing this up is my Cruze has had to have the head pulled and cleaned of intake valve carbon at 70,000km.Others on this forum have similar symptoms to what I had so I think this issue is starting to rear its head now that some miles are accumulated on these 1st gen models.I think driving conditions contribute to this (city) but there is no where in chevy's literature that says you need to drive highway for a certain amount of time.I see lots of diesels in the city (delivery,school busses etc).I'm thinking the new Top Tier fuel may help.In addition our cetane standards here in Canada are low compared to Europe,Austrailia,California.Higher Cetane makes less pollutants,less junk for the EGR to recycle and gum up things.So using that Amsoil cleaner,cetane booster may be a good thing for us.We here in Canada have a new "carbon tax",its too bad the govt.doesn't legislate higher cetane fuel,a known pollution reducer.That way if I have to pay a little more for fuel at least diesel owners are getting a benefit directly.
Quote from Special Task Force on Diesel Fuel Emissions, Brussels June 1992That carbon is not due to the fuel. It's from the EGR soot mixed with oil from the intake that deposits in the intake. The fuel is injected directly into the combustion chamber, it never sees the intake side. So, it can't clog, nor keep clean the intake valves. An EGR and DPF delete will however prevent that build up of crud.