on average, with my car (I park indoors 9hrs a day 5 days a week), 15km daily trip or so... with the usual rain, sun, dust, 3x a week wash... a layer of wax lasts no longer than 1.5weeks or 9-11 days... after that, wala na... kung sealant, mga 3 weeks...
again, my conditions lang yun
kimpoy: you're running the risk of your paint from oxidation and clearcoat failure... di lang halata masyado with lighter coloured paint... "kintab" or "shine" is relative, though... kanya kanya nalang sigurong description yun...