What is the actual oil fill capacity on the 800 with a filter change? My other two machines take about a half quart less than the owners manual says. I%u2019ve seen 3.06 and 2.56 and 3.5 quarts listed online. Also, what about tire pressure? I have it set to 10 in the front and 14 in the rear like it calls for. It still feels overinflated to me.