For the engine a good 5w-40 synthtic is ideal for all year round use. Have a look here to see what comes in on budget http://www.opieoils.co.uk/c-656-5w-40.aspx
For the gearbox 75w-90 here http://www.opieoils.co.uk/c-673-75w-90.aspx
Cheers
Guy
For the gearbox 75w-90 here http://www.opieoils.co.uk/c-673-75w-90.aspx
Cheers
Guy