beech35 Posted November 16, 2005 Share Posted November 16, 2005 ok if the 7.3 runs red fuel why is the 6.0 o-rings so fragile on the o-rings deteration as ford tech hotline tries to convince me.i hear all the highsulfer bs and understand but is it REALLY a concern as made out.or rather a cop out scenario for the other issues.i'm looking for facts not opinions Quote Link to comment Share on other sites More sharing options...
HFCM Posted November 16, 2005 Share Posted November 16, 2005 In California red fuel is Ag fuel and is non taxable for that reason. It is dyed so that over the road vehicles can be detected if using non taxed fuel. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted November 17, 2005 Share Posted November 17, 2005 Don't confuse dyed off road fuel with sulfur content. With low sulfur fuels coming just around the corner, there are concerns about the lubricity of the LSD (low sulfur diesel) affecting fuel systems. The process of removing the sulfur from crude oil is what does this and the results have been causing some problems world-wide concerning wear to injection systems. I have also read about certain additives used to improve lubricity that can affect rubber seals and o-rings that come in direct contact with them. This supports the opposite from what you are suggesting about HIGH sulfur content. As far as I have been told by anyone at Ford, mostly training instructors, the use of off road fuel is not recommended due to the fact that it's quality cannot be guaranteed. Off road diesel (with red dye) is typically the same fuel oil that is supplied for highway use. Samples of off road fuels have historically tested to have more contamination because of poor storage and handling practices. Things like water, algae, crankcase oil, industrial chemical waste are apparently commonly found in off road fuel. These contaminants can do severe damage to fuel systems (pumps, injectors, seals) If you cannot get a HotLine engineer to explain what he is telling you then his knowledge on the topic is suspect. In fact, I don't think most of us have any clue as to what this is all about, myself included. Perhaps it is time for someone at Ford to sit down and outline the LSD situation, the technology being used in Ford vehicles that allows us to use it and what any side affects there may be due to its use that we will have to contend with. Do what I did. Search Google for these words "diesel sulfur lubrication" and start reading everything on the first two pages of results. I was fascinated by what I read! Quote Link to comment Share on other sites More sharing options...
Torqued_Up Posted November 18, 2005 Share Posted November 18, 2005 Good reading! I also saw an ssm on an oasis recommending reducing the oil change interval on trucks using "high sulfur fuel" to 50%!!! On a couple of the links I read that sulfur leaves acidic or caustic contaminants in the oil which is quite possibly the answer to your question For what its worth, I too wish we could get better information out of Ford when we need it and a straight answer would be nice. Personally, "I don't know" is an acceptable answer over somebody's half ass theories. Quote Link to comment Share on other sites More sharing options...
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