Thanks to all on my question regarding synthetic vs. dino oil.  Great info and my weekender is probably going to last longer with 20W50 here in N. Alabama.  New question:  recharged original ac system with Freeze 12- stuff that can be used in place of R12.  Good cool ac almost at once,  but when starting from stoplight I have to turn it off or I come up to speed at a crawl or near stalling if I lean on the gas.  Once I reach steady speed I turn it back on and everything runs fine.  Is this nature of the beast?    Engine has 98K, runs great otherwise.   Thanks, this is a great web site.
Steve
87 GL weekender
03 Passat wagon 1.8L