Use several of these with herbicides. Not up on the differences between them.
Is it the case that methylated are 'strongest' then mineral then vegetable?
Would anyone care to enlighten me please.
I'm not sure about vegetable. The methylated oils I've used in the past have been rapeseed oil i.e. both.
See what else is in there too. Zarado always seemed more potent than Drill (same manufacturer) but Zarado has wetters in too. Adigor was very good, if expensive. I'll have a look at my notes from the DeSangosse Adjuvant Academy I did with @BenB and @Rob Holmes and report back.