FUEL:
From our experience, for racing, the best fuel / oil combination to run your Starmaker or Stormer engine on is:
Premium unleaded fuel (BP Super Unleaded, Shell V-Power or similar high octane unleaded fuel)
The fuel can be further enhanced by adding Fuchs (Silkolene) Pro Boost at 1.5%


TWO STROKE OIL:
The best two stroke oil for racing is Fuchs (Silkolene) Casterene R40 (castor based oil) mixed at 32:1
This type of oil is particularly good for the plain bushed small end bearing. This modern vegetable based oil is far more stable when mixed with fuel than the old "Castrol R" oil from years past. Fuel separation is not a problem. It is also less likely to "gum" up and stain the engine casings. It still has the great "R" smell to it..
For trail bikes, low stressed engines and general usage, use a good quality mineral based two stroke oil like Silkolene Super 2 PRE MIX mixed at 32:1.
NOTE. The use of modern, synthetic two stroke oils designed to be used at 40:1 and higher are not recommended.
These oils will cause the plain bushed small end bearing to overheat and seize.

GEARBOX:
Silkolene Medium Weight Gear Oil 85W 90.
Quantity: 1 imp. Pint (570ml)

CHAINCASE:
Use a thin oil to help prevent clutch drag. We use Silkolene Fork Oil Light SAE5. The oil is to mainly lubricate the chain and bearings.
Quantity: 5fl oz (125ml)

FRONT FORKS:
Pro RSF 15 Racing Suspension Fluid. Use the better quality RSF non foaming oil to prevent fork "patter" on fast hard packed corners.
Quantity: 7.5 fl oz (210ml) for standard Stormer forks. Fork travel will depict the quantity you need.