04-03-2018, 03:16 PM
I don't think you can buy traditional Upper Cylinder Lubricant any more. Certainly, what is sold today as Redex is different stuff and has an advertised different purpose to what was traditionally sold as Redex. A shot of self-mixing two stroke oil to each tank full of petrol doesn't do any harm and might keep the valves lubricated. Engine oil is fine in the gearbox but 75w90 Semi Synthetic transmission oil is much, much better. Something like Millers TRX but there are, of course, others.
Steve
Steve