I have a 2008 4 stroke Yamaha F150w/jet since its 1st oil change @10hrs it has used about a 1-1/2 quarts of yamalube oil in about 35HRs+or-, seams to me that would be some very high oil consumption. I would think it mite slow down some with time but haven't really seen that yet. Just kind wounder what others get and the experiences with them? Going to be taking it to the dealer here soon for 2nd oil change. dealer said @ 50HRs should have it changed again and the every 80 to 100 after that. just wonder if I should make them aware of what I(you guys:wink think would be high oil consumption.