This may sound kinda dumb, but I've taken off all the lower panels on my 2012 RS SM 5 and I can't find any crankcase oil drain plug. In my shop manual there is no mention of a crank case oil drain, but everything else to change the oil to remove the crankcase oil plug after draining the oil tank. I've removed the panel under the oil filter housing but still don't see any crankcase plug. There is no drain plug on the back of the engine by the oil filter cover. What am I missing? Thanks for any help. :dontknow: