yesterday when cruising about 25 mph the low oil light came on, i stopped filled the oil reservoir up then kept going for about an hour. when i went to restart it about 4-5 hours later it didn't want to start took a long time of cranking then it finally turned over. when it finally started it seamed like the power was cut down and wouldn't get up on plane only would go about 11 mph. i coasted back to the dock and did a compression test and all 6 cylinders are right around 100psi. any body have an advice as to what my next move should be?? thankss