I have a fairly hard time shifting out of gear after the motor has been running for a while, which occasionally makes it exciting while docking. Although I pumped all the fuel, changed the oil and replaced all the filters in the engine (Yanmar) when I bought her this spring, I neglected to do anything to the transmission. Is it possible that it may just be low on oil, or is this symptomatic of other problems? I realize that I should just check the oil, but the boat is 3-1/2 hours away and I was making my to-do list this morning before work and just remembered. Normally, by the time I get home from the coast, I have forgotten all about the problems, only remembering when I next approach the dock.