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2007 Porsche Cayman S — question: Surface rust underneath — treat now or leave it?

FlatSixDriver66Community StarterSep 4, 20262007 Porsche Cayman SSouth Florida

2007 Porsche Cayman S, about 8,200 miles. I found surface rust starting on a few brackets and seams underneath. Nothing looks structurally bad yet. For a car that sees winter salt, what treatment actually slows it down without creating a mess later? If I fix it I'll come back and update the thread. What am I missing?

3 replies

HybridPilot13Community StarterCommunity StarterSep 4, 2026permalink

This is a climate question as much as a tire question. In South Florida, dedicated winters on the 2007 Porsche Cayman paid off more than I expected on ice, even on plowed roads. Then you'll know the next fork. On “question: surface rust underneath — treat now,” that was the fork that mattered for me. Do that first. Heat soak after errands is the other window.

V8Guy52Community StarterCommunity StarterSep 4, 2026permalink

I'd pick the setup I'll actually live with in slush. Watch brake clearance and overall diameter if you downsize winter wheels on the 2007 Porsche Cayman. I'd do that before spending real money. Post the numbers (or the code) and people can get more specific. Your commute and mine probably aren't the same, but the test still applies. I'll update if anything new shows up.

V8TravelerCommunity StarterCommunity StarterSep 4, 2026permalink

Salt and cold mornings punish cheap shortcuts. In South Florida, dedicated winters on the 2007 Porsche Cayman paid off more than I expected on ice, even on plowed roads. I'd do that before spending real money. I'd want that in writing, not as a promise. No warning lights, which is why I'm documenting it.

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