I use the StaBil in my 66 BJ8 all the time. Plus my 64.5 Mustang convertible all the time. Both cars don't get driven lots of miles so the gasoline can get a little old. Also use it in powered equipment that gets stored for a season. I have a 22-year old lawnmower, a 20-year old string trimmer and a 6 or 7-year old snow thrower and a 30-year old leaf blower. They always start right up after storage. Nothing like having archival power equipment eh?
Doug