rustystud
Originally Posted by loosescrews
Lucas fuel additive is straight mineral oil and decreases the lubricating effect of diesel. Lucas was good at advertising, not chemical engineering. His famous oil additive is just base stock. His stuff is garbage. There have been many threads about increasing lubricity and hands down soydiesel(biodiesel) at a 2 percent mix is better than anything on the market. Most pump diesel contains 10-20% bio in Missouri, so the adding anything other than antigel is moot here. Check locally for a place that has a mix near you. I run the 20% mix in my truck, no "corrosion" issues, no algae issues. You have to be careful with the scuttlebutt floating around about fuel additives, its infectious.
Actually "Opti-Lube" beats anything on the market. It is the very best diesel fuel additive out there. Independent studies prove it.
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As far as a bottled additive, Optilube XPD is the best, but as far as things to put in the tank, its not. A 2% blend of biodiesel(soybean) shown a 30% improvement over Optilube XPD, and 2.8 times less wear than straight diesel. Also, bio comes right out of the pump with the regular diesel here where I live.
http://www.jatonkam35s.com/DeuceTechnicalManuals/Diesel_fuel_additive_test.pdf
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Lucas, used motor oil, and other additives makes things worse. Bio can cause corrosion, and if it sits it will at a 100% concentration. The real killers of these trucks isnt ulsd, its neglect and disuse/misuse. Treat it well(bad pun) and it will do the same to you
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