Crusader Inboard Engine Parts by Holley

Is it possible for a transmission to run out of oil in 25 miles at 3000 rpm on a crusader 270? I fried mine and my storage marina said it was because the cooler was plugged, but the engines didn’t overheat . I didn’t check the fluid levels because they were suppose to be checked on spring commission. The dip stick wasn’t in place either. Total oil in the bilge was maybe two cups. No sign of vapor anywhere in the engine compartment. Two quarts of oil couldn’t vanish…The yard said their mechanic checked the oil.