I'm not sure what the current mix is...
A very good cleaner as mentioned is benzene(C6H6) I believe. Not to be confused with the old word for gasoline-benzine.
Anyway, for nice cleaning of things I've used Naptha which can be purchased in bulk by the gallon from petrolum distributor or you can buy a gallon at Lowes for $7. Think of it as closer to laquer thinner so it is flameable.
No offense, but 4 cans to clean a oil pan? You should have a parts cleaner. For brake jobs, I've been washing down the calipers, wheel wells with citric acid cleaner before working. Things are damp, but my hands remain clean. No dust, so I worry less about health effects. I've also just used the pressure washer cleaner from Autozone and a pressure washer.
Michael
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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E
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