Go BottomHigh Sulfur Diesel Fuel -hurt engines
 | Brian
Join Date: Jan 2005 Posts: 49 Norwood, NY 
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1999-08-04 6598
A dealer told me to use 'Off Road' Diesel because the sulfur content help lubricate the engine. A book I read about my tractor (it was wrong in at least two other places) said not to use 'High Sulfur' Diesel, as the acid formed during combustion would corrode the engine parts. I've been using 'High Sulfur' in the tractor, purchased from a Mobil distributor. When I asked what grade the 'High Sulfur' fuel was, he said he didn't know. (I've heard there are two 'grades' of diesel, d1 & d2 or something like that.I'm thoroughly confused. What should I use in my tractor? Its a John Deere.
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| Frank
Join Date: Feb 2002 Posts: 64 la
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1999-08-04 6599
I can't give you a direct answer but I can tell you that the sulfur content of the off-road fuel (colored red) is higher than is permitted for highway use. My Deere book says if sulfur content is higher than 0.5%, reduce the service interval by 50%. Well, I plan on doing that anyway (because of the relatively few hours I put on my tractor). I checked with the terminal where the fuel is distributed and the last time they tested the off-road diesel, the sulfur content was somewhere around 0.18% (my best recollection). Anyway, I use it and feel relatively safe in doing so. Off-road is not #1 or #2 and it costs about twenty-five cents less per gallon because highway taxes are not charged. ....
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| Keith
Join Date: Posts: 1
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1999-08-04 6602
Brian, a nearby JD dealer I spoke with also recommended to use the off-road diesel fuel. His mechanic said it helped to lubricate the diesel injector pump. Where I get my off-road diesel, the fuel is dyed red and costs about $.71 cents a gallon. Another poster on this group indicated the color codes are as follows:Clear Diesel = on road low sulfurRed Diesel = off road low sulfurGreen Diesel = off road high sulfurI would have thought that I should be getting the green dyed stuff, so I am little confused as you are. ....
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| keith D
Join Date: Posts: 1
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1999-08-04 6613
I been wondering the same thing.I just bought a Yanmar 2500 grey and was wondering about the red fuel.I too have been told that the high sulfur fuel is the one to use in this old tractor (1977 model).But when I mention this to most anyone they say the red dye is just added to regular low-sulfur fuel that has no road taxes paid on it.But I also believe that it is higher in sulfur.I will call my local Shell Bulk terminal and see what they tell me...stay tuned...Keith ....
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| Rodney
Join Date: Jul 2003 Posts: 12 Virginia
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1999-08-05 6632
Just bought a NH TC18. My dealer also said to use 'farm' diesel from the local coop. He mentioned that if on-road diesel is used, a fuel additive should also be used. The rational as explained to me was the internal lubrication thing. ....
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| Ted
Join Date: Posts: 1
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1999-08-08 6744
there is no such thing as "high sulfur" diesel fuel...........there is low sulfur diesel though. Reduced sulfur fuel is a result of emissions required by recent changes to pollution laws. This is why all new diesels used "on-highway" have catalytic converters, etc. However, "off-highway" equipment is not required to meet these lower standards...........yet !! The sulfur is a natural lubricant in diesel, in low sulfur fuel it is replaced by an additive at the refinery. It is extremely unlikely you would ever have found more than 2.0% sulfur in any fuel, higher than that it is more profit for the refinery to remove it and sell it seperately. If you are overly concerned about using low sulfur fuel, or just to be kinder to your motor, use an additive (Amsoil makes a great one, so do several other companies) that will boost the lubrication, and or cetane (diesel equivalent of octane) in the fuel. ....
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