From memory, they have the same add pack, the conventional (really a blend but the bottle says conventional) may have the same additives too. FWIW- My ST syn burns off a lot slower than VWB, but that's probably to be expected.I don't think you'll have any problems running ST syn. ...it's a good oil at a great price.
I thought that I once read on this site that there is no difference between ST syn. and ST HM syn.
Am I correct in this?
A big name does because if nobody supports those companies - nothing will move forward if there’s only blendersST is an awesome oil and I prefer it. Not because of price, but because of UOA results. If a "Big Name" make you feel better.... then by all means... ST is awesome.
The LS motors like a heavier 30wt.M1 HM 5/30 is definitely heavy for a 30.....11.9 at 100°C