I'll put a personal opinion up here.
I feel that since the pump is lubricated by diesel fuel, If/When you put kerosene, or a fuel that is less lubricating than #2 Diesel,
It would be SIMILAR to putting a VERY, VERY lightweight oil in your engine.
So, This is how I feel. .
When you put Kerosene, etc. in your truck, you should also change your engine oil to a 5w-10 Gasoline engine oil.
Two reasons to do this.
1. Just Like kerosene,, Lightweight oil is less money.
2. If you ar willing to save money on fuel, at the expense of your $,$$$ Injection pump, then you would be more than happy to save money on your oil and put 5w-10 or less weight oil in your crankcase, at the expense of your complete engine block.
Moral of the story:
Don't be cheap with your $30K+ investment, You BOUGHT the BEST, now give your truck the BEST.
MerrickNJr
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1998. 5 Dodge 3500, 2wd
5-Speed, Light Driftwood
STRAIGHT PIPED!

3. 55_LSD
A. R. E. Camper w/side pop up windows
Michelin LTX 245/75/16's
Autometer Gaugeworks 3 Gauge A-Pillar Pod
Fuel Pressure (0-15Lbs)
Boost Pressure (0-35Lbs)
EGT Gauge (0-1600*F)
ATS Manifold too!!