Hi Pighunter,
One thing you might consider at some point if you want to do your fluid changes and don't want to do it at a lake is buy an $83 dollar 100 gallon Rubbermaid tub. I'ts oval so you can tilt your engine down into it. There is also enough water pressure by volume that overheating isn't an issue. Ran my engine in it 45 mins, no problem. Ran my engine on ear muffs for 5 mins, problem.
Always better changing oil when its warmed up. And good to run 10 gallons of vinegar and small amount of Dawn or similar once a season to remove engine deposits.
Rubbermaid Structural Foam Stock Tanks, 100 gal. Capacity, 4242-88
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