The first time I recall using WD40 was when I was stalled in a parking lot on a rainy drizzely day back when I was in High School with my first car. The 1970 Olds, with the Rocket 350 engine had a problem with the cap getting damp and my brother knew it. When I couldn't get the car started, he said "wait here and DON'T do anything." He walked across the street to the hardware store and returned with a can of WD40. I thought NO WAY would this work. He sprayed the distributor cap, popped it back on, then said... "Lets go home". It started right up.