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Engine compartment wash and treat? with what?

Posted: Tue Jul 11, 2006 7:32 am
by steve
I just got a 2003 Jetta TDI, so I'm catching up on 20 years of improvements. Man it works great!!! So I read the entire owners manual and it said that if you wash the engine that you will remove the corrosion protection that is on there. What's it talking about?

I've never heard of that. What do you use to put it back on? I don't see anything on the shelf that advertises itself as an engine compartment treatment or whatever. So I'm not sure what to do... maybe it's that stuff that dealers put on the engine to make it look shiny and new. But I don't know what that is either. All the “Armor Allâ€