Hi everyone, I posted under Gatlinburg Vacation that I had a problem with the oil filler cap coming loose while riding in the mountains on my softail. Thought the problem may have been a contraction issue with changing temps so quickly. Well, yesterday it happened again while on a ride with my wife. Anyone else ever have this issue. Questions: Does this sound like the vent line may be clogged and needs cleaning. Searched for answers here but to no avail. Could if be the rubber seals on the cap are worn enough it just blows out when riding. Local dealer is not open yet so I'm looking for help to fix myself. All input will be appreciated, Thanks!