Heh. Looked up this in my 1997 900/750/600 Supersport owner's manual, which (to my surprise) stated: "AGIP 4T SUPER RACING", with no mention of viscosity. Looked up in the Haynes manual for these bikes ("2-valve V-twins '91-'96"): "Oil type: AGIP 4T Super Racing, or any good quality fully-synthetic motor oil. Oil viscosity: SAE 5W/40" My oil level sightglass has stayed clogged up with emulsified water far as long I've had the bike (3 years), and has never cleared, even after long runs on hot summer days (left the bike to cool down with the oil filler cap off). I'd like to know if any particular oils (AGIP?) are better than others, when it comes to not keeping condensation emulsified in the engine? |