Since you're back in the land of the big PX get oil eater as it's nontoxic and biodegradable and will remove all oil/grease without scrubbing. Just keep it off glass, hot aluminum and asphalt unless you want bare rocks. A clean bay is the best way to start and keep an eye on things.

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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course