Dad’s brand new, 0-hour 2019 115 merc proXS four stroke runs fine, but the tell-tale temp discharge guessing by hand barely got above lake ambient lake temp. Lake was low-mid 50’s and I guessed the stream to be no more than low-60’s even after 30min of on plane, break-in operation. Is this normal, as I’m used to feeling a slightly scalding temp after 5min or so of running.