Curious about products for undercarraige

[MobolWerks]

Mike,

I am about to get some p21s total auto wash to try on my engine and undercarraige, and I was hoping you might have some thoughts on products you use in these instances.. Like for instance a version of 'taw' that is a little less expensive.

I am a safe-cleaning guy, so I am not interested in anything containing harsh solvents - and I don't mind using a little elbow grease

Also, what are some products you use to protect engines andundercarraiges after cleaning??? Products that will stand up to high-heat situations.

I was considering Wolfgangs Metal Sealant, but before I order I wanted to get some suggestions.

Thanks!

[ScottB]

OPtimums Powerclean ???