Morning chaps and chapesses, I have a 1996 HPC Caterham, with my C20XE engine pushing about 200bhp now, but aiming for nearer 250bhp soon. It currently has the standard 5-speed Ford Type-9 gearbox fitted. I have acquired another 5-speed Ford Type 9 gearbox, but this one is fitted with a Quaife straight-cut gearset. It’s being refurbed currently and will be installed on Easter weekend. What oil should I run it with (and what volume) for optimum performance - tempered with as much quietness - as I can get? Please advise, so I can get it bought and ready… I can't wait… Many thanks in anticipation