Most engines with performance ratings of 135HP will operate superior if lubed with MerCruiser out drive oil. Open the motor compartment go over and locate the hydraulic trim pump from the reduce rear space in the motor compartment. The unit will have two electricity trim hoses connected to it. Look https://automotive-mechanics28393.blogolenta.com/24177080/types-of-oil-goes-in-a-mercruiser-outdrive-things-to-know-before-you-buy