I'm not trying to bust anyone in particular with this post, as I know everyone has a opinion about everything, myself included, but if you will notice, many, many posts have opinions expressed as fact, with seldom any data to back that up. One example is the mowing of overgrown properties with a Z. Any thread dealing with that will have a few saying how hard it is on your mower, etc, etc. Okay, but does anyone have anything to back that up? Is it really that hard on your mower, if you use your head? Anyone ever blown a hydro mowing 18 inch grass? Any broken belts, overheated or blown engines? Burned out PTO clutch? In other words, do you THINK it is hard on a mower, or has past experience proven that to you? It is the same as issues like oil change intervals, filter use, and type or viscosity of oil. I've seen probably a dozen threads about which type oil to use, and every time you see lots of opinons expressed, mine as well, but, in the case of myself at least, I'm basing most of those opinions on what I've read, rather than actual experience. For those that blast dino oil, have you run dino and synthetic oils in identical engines and had the dino lubricated engine fail sooner? Have you changed oil at 100 hrs on one engine, 50 hrs on another identical engine, and seen a major difference in the engine life? Do your engines actually last longer with Wix filters than Fram? I am just wondering how often opinions are stated as fact, when, in fact, the poster doesn't have a clue?