Has anyone noticed a mileage change with the swap? A guy Im always arguing about diesels with told me that his truck runs worse and gets 3mpg less on ultra low. I havent noticed a thing. He also said his dad's 07 was getting about 14. He filled up with regular low, (which I didnt even know was okay but it said it was in the manual) and that his mileage jumped to 19. THis sounds like a load of bull to me, but mainly because everything this kid says is bull. Anyone have this experience?

 

cummins says thats poosible on thier website

 

the mileage difference you mean?

 

have tried tankful of both and for me the low got bout 2-3 mpg better than ultra low driving on the intersate and state hwy. getting around 18 on low sulfur with 2500 miles.

 

better mileage, more power and my engine runs smoother on low sulfur than it does on ultra low. But there only place by me that still has low sulfur and im usually not by it when i need fuel so i just add that Howes diesel treat to the fuel and it makes the ulsd better

 

I add powerservice everyother time. Maybe this is why I havent noticed much difference.

 

yup
youll read it in their newsletter. good stuff to sign up for

 

Diesel fuel from oilsands gum up works in some engines, scientist says

CHRIS VANDER DOELEN
Windsor Star
DETROIT

Scientists hope the coming flood of diesel-powered vehicles in North American car dealerships sheds further light on a little-known problem with fuel made from the Canadian oilsands. Diesel fuel made from 100 per cent oilsands petroleum has been causing injector malfunctions and other problems in some diesel truck engines in Alberta, an international conference of engineers heard Monday April 16th. The problems disappear when the pure Alberta fuel is mixed with diesel from anywhere else in the world. The problems are believed to be linked to the molecular structure of fuels derived from the oilsands, and the process used to extract it. "We're not sure what problems it's causing" but several diesel engine makers "are concerned about it," said Jim Eberhardt, chief scientist with the U.S. Department of Energy's Freecomcar project. "We know the molecular makeup (of Canadian oilsands fuel) is different than petroleum diesel from other places," Eberhardt said at the annual meeting of the Society of Automotive Engineers. An estimated 35,000 engineers are attending the society's world congress in downtown Detroit this week. Most petroleums are comprised of long-chain aromatic hydrocarbons. The chemistry of Canadian oilsands diesel is different; its molecular chains are short. The difference is believed to be a by-product of the process of removing the high sulphur content in the oilsands. "It's real clean, but it changes the composition," Eberhardt said of the fuel. The engine problems caused by the Canadian fuel have only occurred in inline, six-cylinder, light-duty diesel engines in pickup trucks driven in Alberta running on 100 per cent Alberta diesel. Eberhardt said several engine makers are aware of the problem, including diesel industry giant Cummins Inc. Calls to the company Monday couldn't turn up a spokesperson who had even heard of the issue.

CanWest News Service

 

Ok help me out why does this oilsand diesel fuel only affect 6 cylinders engines and not a V8? Something don’t sound right!

 

Yeah ..... like CHRIS VANDER DOELEN owns a Powerjoke or Diapermax

 

I was also confused by that statement about ULSD from the oilsands only affecting inline six cylinder diesel engine fuel systems. It just does not seem realistic to me because an injector is an injector no matter what diesel engine it is functioning in. My guess is that it has something to do with the specific design of injectors in Cummins mechanical engines. Probably the injectors in the mechanically injected engines are the ones detrimentally effected up to this time. The injectors probably have many miles on them before the use of ULSD and will be the first to malfunction from further deterioration from ULSD's defficient lubrication properties. The injectors in V8 and the ISB Cummins possibly will show detrimental effects sooner than normal later when more miles are put on them. Just because I have a newer CTD I am still going to use a diesel treatment liberally to protect my injectors from the adverse effects of ULSD. I use Howes and Amsoil diesel treatment. The new 7.6 L Cummins need a diesel fuel additive also, even though they are supposed to be made for ULSD. The article said the oilsands diesel is real clean, and that could mean their is so little sulpher in the fuel that its lower lubricity is affording the fuel system no protection from wear. I just do not know the answer but something is missing or something detrimental exists in oilsands diesel fuel.