Undercarriage anti-rust treatment for a 348

I think the best investment is to buy something else to drive in the winter. I'm sure these rust preventing agents work well, but it's impossible to keep the salt/brine out of everywhere. The electronics on these cars are temperamental enough without added corrosion.

 

I have never used any rust preventative treatments, but I know that its also your car and you can do what you like with it.

 

They were originally subject to treatment, as follows. (Image "borrowed" from a Scuderia uk forum thread)

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Yep and mine still has it on there, some sticky stuff when it gets hot.

 

If I lived in Norway or Sweden & loved older sports cars I would purchase any Porsche with special zinc coating underneath on suspension. 944 definitely, or 911?? Realistically anything AWD with zinc coated suspension.

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waxoyl would be a great product to use. Wurth makes a spray on product as well.

 

Here's another reason to avoid the salt: you're concerned with the obvious steel body and chassis corrosion, but don't forget the wiring. I replaced many of the electrical connectors in the engine bay and was horrified by the condition of the copper wire strands in many of the wires I stripped. Instead of shiny copper it was black, brittle crud. Some kind of moisture must have gotten past the rubber boots and under the insulation to cause that, so driving around on wet and salty roads that could accelerate that process would be I'll advised.

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