thanks guy's i appreciate the info - it sure does run alot better at the higher rpm's - i will add some extra oil to my main tank - i use one tank for getting to and from fishing grounds and a second for trolling - i ditched the autoblend when i got the motor - i could never get myself to trust those things . i have to say this is the best merc. i have ever owned - they've all been good but this one stands out for sure - it's mounted on a 1972 15'5 sangster -
again thanks for the info -i feel alot more confident running it higher now .