The funny thing about that nifty test that site has that points everyone to wallyworld 2 stroke oil and biodiesel , is that is only takes part of the equation into account. All it is worrying about is the lubricant part, PERIOD. which is fine and dandy if that is your one and only concern on your engine, but the problem is, that isn''t the only component in the fuel system, and the *test* fails to take into account the fact that adding two stroke oil will build soot and varnish on injector nozzles, something that will REQUIRE one of the other additives with the solvents in it to take care of
. That;s the problem with narrow scope tests, it is very easy to make the outcome look good for brand x when in the overall, the big picture presents a completely different view.
In the long term, there is a very good reason for the makup of the commercial formulations of diesel fuel additives
As far as lubricity changes in the new uLSD fuel, there really aren't supposed to be any there is some loss of lubricity in the removal process of the sulfur but they are required to replace it with additives before it ever hits the pumps. The new fuel does burn at a different rate and it does have a nasty effect on old seals and eveyrone still on an old pump is going to be replacing it soon as it springs leaks, there's just no way around it
I've run the Howes for many years and it's saved my life more than once ( I've been in well below -80 degf with that stuff and not had trouble, Ive gelled up at one time or another on everything else out there ( and with well over 1.2 million miles pushing big diesels in the past ,I've had plenty of time to play with the things).
Summer time I could use other things, heck, I sell Amsoil, but I just don't prefer their diesel additive, Their cetane booster is some serious great stuff foe smoothing out an engine on real high compression jobs, but I've just not been all that impressed with the regular diesel additive.