My friend sold a pair of 68-72 VW bugs to a sweet hippie couple and they would use vaseline on the seals and would rub it in. With the brazilian seals (it feels like foam) on the 72, it ruined them within a year. So he switched to silicon and with the rubber seals from Germany, he used vaseline until he was told not to by my friend after he called him over the brazilian seals! So thanks to the Brazilians, the Germans weren't ruined!
