2002/2003 Johnson SN/ST 2 Stroke 3.5, 6 8 HP Outboards Service Manual, PN 5005466, Page 33Get this manual
SPECIAL TOOLS AND SERVICE SPECIFICATIONS OIL REQUIREMENTS
OIL REQUIREMENTS
Engine Lubricant
EvinrudeJohnson XD25 Formula outboard oil is recommended for your outboardIt contains richer additive package than other TC-W3 oils, minimizing carbon build-up and deposits on pistons and bearing surfacesIt provides 25 greater detergency than minimum TC-W3 requirementsEvinrudeJohnson brand oils are formulated to give best engine performance while controlling .piston and combustion chamber deposits, providing superior lubrication, and ensuring maximum spark plug life
PROPELLER SELECTION