Originally Posted by foundonroadalive
i do it every week. but i am retired and a focus fanatic. i like optimum, especially opti-seal.
opti seal is a sealant, not a wax. you really dont need to re-apply for about 6-8 months or so, just wasting product.
If you are using regular old carnuba based wax, every 3-4 weeks, as the carnuba wont last very long.
If you are using something with polymers(AKA sealant) then depending on the brand and the conditions the car is subject to, 6-12 months.