I'm just about to do my 75000 mile service and I'm just wondering about a few things.

Is motul 300V the best oil?
What spark plugs? NGK PFR6B (plat) or NGK BKR6EIX (irid)
Should I change the diff and gearbox oil?
How hard is the fuel filter to change? (Don't even know where it is!!

Any help is appreciated

Paul