Ok I just bought a 2009 50" RZR. Do they all come with a plastic skid plate or was this added? I just changed the oil and did not realize that I dropped the brass washer that was on the oil drain plug (until I went to dump my old oil). Do you think I need to put the brass ring back on? I suppose I could collect the oil and re-use or just buy 2 more quarts (dang that polaris oil is expensive). Speaking of oil, is anyone using any other synthetic oil? The guy I bought it from said he had the polaris dealership change oil this spring but I found that it had just under 1 quart of oil in it! Also my Polaris dealership sold me 5w-50 and the owners manual says to use 0w-40. Thanks in advance for all your help/suggestions!