don't go full strength with an APC while doing the engine.

for degreasing, i'm at 5:1. that ratio suits me well. after cleaning, spruce up the bay with some dressing.

no need to power wash. and like all people said, cover the essential parts. this can be done by rags later. try to look for Engine Kote (if there's still any here in the Philippines). Better than Hyper Dressing IMO.