Yearly spring clean under car - what do you use?

[jazzdude]

Got the car up in the air on high axle stands and its time for a clean. Looks like some oil has leaked from the oil filter too and there is now oil going back to the diff.

The chassis and wishbones that I refurbed last year also need a clean, as there is road grime and bits of oil all over it. (I didnt cover it with waxoyl, it is bare Rustoleum).

What's the best way to get it all looking like it did last year when I finished my resto? Brushed on white spirit then wipe it off? Or spray over everything in a gunk type degreaser and then pressure wash it off?

Any good time and 'muck all over me' saving tips will be most welcome.