For what it's worth, I've been running B100 in my '99 for the last year and have had zero issues.
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1999 Dodge Ram 2500, QC/SB, 2WD, auto, RV275s, Edge w Attitude, AFE Stage 2, AirDog 150, BioDiesel, Bilstein Shocks, B&W turnover hitch, Firestone airbags, RDS toolbox/60 gallon tank combo, Sport headlight conversion with HD relays, Bosch Compact 100 fog lights