Did the Oil change yesterday, and did pretty good too. Seems to run fine and a lot more smoother with the M1 oil and sounds good too. It took us a while longer Cause the bolt for the oil was stuck on there good so it took forever to get it out. I think they torqued it in but we got it out and tightened it enough so we can open it again. Pretty easy to do the oil change, dont know why we pay to get it done when we can do it ourselves. Its so easy to change the oil that a cave man can do it.