A cleaner method is to use, LPG or LP-gas from a small hand held torch, turn the torch gas on & fumigate it around the suspected areas if you notice an idle change, there is a leak
Beat me to it.... geeesh, using wd-40 would make a mess lol!
Neat freek girly mans you both are! Do you keep wet wipes next to bed on a doily for cum spots??