Since the hybrid still isn't done, I took my 400EX out this past weekend to Powerline Park in St. Clairsville, Ohio for the Memorial Weekend ride/camp/party. To make a long story short, I lost my dipstick/oil reservoir cap while on the trail. There is a ton of mud at Powerline Park, as well as ponds and water crossings. I put 4 hours on the bike Friday. When I started, I know I had the plug because I checked the oil and put it back like I always do. When I woke up to ride the next day, I was going over the bike and saw the plug was gone, and all the mud on the left side of the bike was black with oil
So, I have no real idea how long I rode the bike without it nor do I know what got into the oil. What would you do?
![Think :hmm:](./images/smilies/eusa_think.gif)
I was thinking about draining the oil, running some cheapo oil through it for maybe 15-20 minutes, then drain it, change the filter, put new oil in it and run it. Think that would be enough? I've heard of people adding kerosene to oil and running that through bikes that have been submerged in water. I didn't know if that would be a good idea as I know that a lot of rubber seals do not take kindly to kerosene.
Dispite my bad luck, I still had a blast riding there while it lasted!
![Image](http://i137.photobucket.com/albums/q220/hardbodyty/20160530_194313_zps3xziyzcc.jpg)