You were told never to use silicon on rubber weatherstripping? I have been told by many people to spray my weatherstripping and coolant hoses twice a year with silicon spray to keep them from drying out and I havent had any bad experiences yet.
2003 Volkswagen Golf GL 24,000 miles. 1.9L I-4 TDI 5spd.
1986 300E. 115,000+ miles. 3.0L I-6 1st daily ride, around town only. (Gone)