6.7L Cummins Forum - View Single Post

Vis-a'-vis · #1 (**permalink**) 03-02-2008, 07:30 AM

There are alot of unknowns about premium diesel and where you get it. I'm taking this on as a project to provide more information. I know by my own testing that there is a big difference in diesel fuels. Diesel fuels from big rig bays do not perform as well as diesel fuels purchased from stations that cater only to cars and small trucks. Most of these stations and not towing friendly. I've been buying my Diesel at a local Texaco station and have seen my mpg go up and regens go down. The Texaco fuel does not have premium diesel listed on the pump but I've realized the difference.
Premium Diesel is big in Europe and other countries. See the link below;
BP's new 'ultimate' premium diesel touts higher cetane - Around The World Of Diesel - Brief Article | Diesel Fuel News | Find Articles at BNET.com
In 2004, the premium diesel standard was issued for the USA.
It seems to me that the 6.7 CTD certainly qualifies for the need to use premium diesel and I expect to see a great deal of activity around this subject as 2010 emissions standards move other manufactures to the same level as the 6.7.
Here is the standard
Premium Diesel Fuel
National Council on Weights and Measures (NCWM) approved a Premium Diesel Fuel Specification effective Jan. 1, 2004
· Cetane Number (47 minimum)
· Low Temperature Operability
· Thermal Stability
· Lubricity (520 HFRR)
Note, a refiner or distributor can call it premium if the fuel meets 2 of the 5 above….So, if you buy the fuel in winter months, you have the potential of only getting one.
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