wd as moisture repellant was lead acid batteries concrete stephen dogmatix inmos co uk stephen collyer writes the same thing happens to my car citroen cv damp gets under the bonnet us hood and shorts the spark plugs to earth so it won t start the solution for the car is to clean the plug leads and spray with wd moisture repellant if damp is the problem then storing the well this is off topic but back in the days when i used to drive bangers i never found wd to do anything that wiping with a dry cloth did nt do i think the effectiveness of wd is a myth invented by the guy who owns the company back in high school i used to work for a detailing company and one of the services we offered was an engine cleaning remove all that oil before you sell the car unfortunately we did not have a high pressure washer so we would use one several miles from the shop on more than one occasion after washing the engine it would not start as water would have gotten under the distributor i would put a plastic bag around it to try and minimize this around the spark plug wires etc and it would be nearly impossible to try and wipe all these areas down with a dry rag the usual solution was to carry a can of wd and when the car wouldn t start to spray all the likely areas and it would then start on the very first time it may be a myth but it certainly kept me from being stranded at a car wash rodney radford computer graphics imaging sasrer unx sas com sas institute inc x cary nc
