Those with DPFs its probably best not to use a fuel additive. Iv read that most fuel additives can cause extra regens, or more often regens when using a fuel additive. Just use ULSD fuel. Or LMMs B5 max & LML B20 max.
Yep. Every little helps. Regens arent just based on miles. Its more of a matter of fuel used in those miles. With a fuel additive regening every 1/2 tank about 12-13 gal of fuel used @ 200-280 miles vs no fuel additive every 3/4 of a tank 16-19 gal of fuel used @ 300-380 miles.For only a 100 mile difference does it matter?