I'm doing some maintenance on my 2008 F150TXR. I purchased a kit from a Yamaha dealer for the oil change, it included 5 US quarts of Yamaha 4 stroke oil, a filter, and new oil bolt drain gasket copper o-ring. The Yamaha part number is LUB-MRNMR-KT-10 for F150. My factory service manual says 5.5 US quarts with oil filter change? After the oil change I ran the engine for 5 min and checked the dip-stick level and it's in the middle of Low and High range. But according to FSM I'm short 1/2 quart. Can someone tell me if I'm good to go? I found it strange the kit for my specific engine was short.