I paid around 300 or so to do it on a Land Cruiser I bought once. I’m a fool and traded it a year later so never got to see the results. My understanding is you have to come back and reapply it every year or two. It came with a warranty. Toyotas are known for surface rust so if you have one of those might be worth a look.
If you don’t plan to keep the car like 10 years I’d forget about it. What’s your expected duration of ownership and what’s the make?
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