for me Motul 5100 is one of the best for T135..it's semy-synth..from cold start to clutch performance, I can only say positive things for this oil..
you can actually feel the difference..too bad, it is very hard to find this day..they say it was already phazed out here..I'm now scouting for different brand..IMHO, don't use Motul H-tech 100..stay away from this one..