ulsd vs. lsd
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Elder User
Joined: Apr 2006
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From: Taylorsville, UT
ulsd vs. lsd
I am new to the diesel world. I have recently picked up a 03 6.0 superduty with 64000 on it. Switched from a F150 for the power in towing. Anyway, I have been reading that diesel is has been changed mostly to the new ulsd. Should this effect the older diesel engines? Do you guys use any additives to the tank to combat the new diesel type?
Posting Guru
Joined: Apr 2008
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From: Green Lane, Pa.
Add cetane booster, and a lot of people including myself use a lubricity additive such as ashless 2 cycle oil. If you live or travel in a very cold reigon of the country (0 or below) in the winter a antigel additive would be very helpful.
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Joined: Jan 2009
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No the 6.0 was designed to run on ULSD. No additives are required or recommended by Ford except for the anti-gel but as long as you are running winterized diesel in the winter time you should be fine. I do not recommend putting oil in the diesel (check you manual). The most important things you can do is use good quality diesel from a high volume dealer, change the oil and filters when Ford recommends. Be nearly religious about maintenance and drive it like a diesel not a gas truck. Learn to roll onto and off the throttle. It will drive much better, produce less smoke and in the end you will get better mileage and have to clean the egr less often (my opinion). The 6.0 on the X can produce very nice mileage when you are careful...
Fleet Owner
Joined: Nov 2003
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Not quite true. Ford states that 45 cetane level is the minimum value for "Optimum Performance". The U.S. diesel cetane level is commonly 38-40. A cetane enhancement additive is a wise investment IMO. I also think that for the longevity of the injectors, an additive for lubricity is important. The new fuels absolutely do NOT have the same properties for lubrication that they used to. It really isn't the sulfur that lubricated, but the process to remove the sulfur ALSO reduced the fuels lubricity. It is hard to prove that additives will help increase the life of your injectors because by long term, I mean 100k + miles. Tests on fuels and additives show that additives help the fuels lubricity. The manufacturers of injectors also support the use of additives and their benefit to injector life.
Cross-Country
Joined: Mar 2006
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Ford is pushing there fuel treatment HARD. You talk to any of the good mechanics and they will tell you its worth the money. They ran a test on a fleet of ambulances and ran treatment in half of them and no treatment in the other half. The ones treated had 1/2 of the issues with stuck turbo vaines and clogged EGR valves, injector problems were down about 30%. This was a real world test and to me proved that the ford fuel treatment works, i personly use Power Services.
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Elder User
Joined: Apr 2006
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From: Taylorsville, UT
Thanks for the info you guys are posting. I just changed both filters last weekend and did a oil change also. I did put in a diesel additive in the last tank to help clean the injectors, ect. up. I have my first big tow trip coming up next week. Looking at 1000 miles with a 7000lb trailer. I cant wait to see the difference between the f350 to my old f150.
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CoachCL
1999 - 2003 7.3L Power Stroke Diesel
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May 23, 2014 12:20 PM
