I figured I'd try each of the top 3. So far, I've tried FPPF Total Power, Stanadyne, and now I want to try Primrose. Why do I want to split an order? My truck did not run too well on Total Power (nothing against JK, I think Total Power just didn't mix well with the local fuel additives), and I just don't want the extra bottles around if it does not work well. So far, my truck seems to run best with Stanadyne, but I'd like to try Primrose. I'm looking to split a case of 6 Primrose 405 with someone in the northern Mpls suburbs (I live in Plymouth). PM or email me if intertested.