My Speedmaster seems to run fine on Motul 15/50 Semi Syn. However, the price just went up and I now have to pay $50.00's Can. which is equal to $60.00 US. per US Gallon. @#$%^& you can buy a BARREL of oil for $50's!
Don't want to hijack your post Keith....but my question is...can you go back to Dino oil after using Semi Syn? Much cheaper per Gallon.