My father used to spray a mixture of diesel fuel and oil all over any vehicle left outside for any extended period of time. Living in New England meant harsh weather and salt. He would periodically re-spray the vehicles after a heavy rain or snow fall. He kept this up on a 55 Chevy for years. In 1986 dad sold it after powerwashing it with detergent and hot water. The car had suprisingly little rust. Like a 16 year old idiot, I didnt think the car was cool and wanted a truck. Should coulda.....
Mac
