I have used Silkolene Oils for many years. First Super Two 40 and now Comp 2. I personally have found that little end lubrication is poor on Scotts, phosphor bronze bushes help, and these do wear more than on other engines even when the engine shows no signs of nipping up or suffering distressed big ends. If only we could have a needle roller little end.
To pick up on Ian’s point about small end (lack of) lubrication.
‘Ears a goo (as we say in Birmingham), some Scott owners believed in the practice of fitting “stuffer blocks” in the crankcase under the pistons to decrease the lower chamber volume and promote better gas transfer – which also had the effect of displacing the inert volume under the piston crowns thus creating gas flow to both aid cooling and increase small-end lubrication.
Other Scott owners didn’t bother and just listened to George Formby records.
Hi Tom. If you use Pistoneze through the pump you CANNOT then use a two stroke in the petrol. I have just saved you an engine rebuild as they mixed and jammed up my rings beautifully. Yes Silkolene Comp 2 throughout for me. Bottom end and in the petrol.