Hi
I would use a 5w-40 synthetic in the engine.
http://www.opieoils.co.uk/c-656-5w-40.aspx
Out of those, the best ones are the Fuchs/Silkolene Pro S, Millers CFS/CFS NT, Motul Sport/300V, Red Line and Gulf Competition. The Motul 8100 X-Cess, Millers XF Longlife, Fuchs GT1 XTL/Supersyn, Gulf Formula G/ULE, Shell Helix and Mobil Super 3000 are good, cheaper alternatives.
You need an MTF for the gearbox and the best proven options are the Red Line MTL or Fuchs Sintofluid. The Millers TRX 75w-80 and Motul Motylgear are good alternatives.
http://www.opieoils.co.uk/c-670-75w-80-75w-85-mtfs.aspx
Here are the plugs.
http://www.opieoils.co.uk/c-342-spar...low-plugs.aspx
Cheers
Tim