Just bought some walmart 2 stroke but haven't added any yet. Found a station nearby with b5 biodiesel. Any thoughts on which is better for the dmax? Is it a waste to add 2 stroke oil to a tank of b5?

B5 is probably better. It will burn much cleaner than the 2 stroke oil. In small concentrations, the 2 stroke oil is probably fine, but I'd stick with B5 if I had the choice.

Jake

b5 is more or less free.. compare the price difference of a tank of diesel, vs a tank of b5. if the difference is less then the cost of a bottle of 2 stroke oil, go for the b5.

B5 or even higher if available. My truck runs nothing but B100.

B5 is better or even run both. I would avoid B5 in the winter until there is a fix for all the gelling issues.