09GLDR
Member
Hey guys, had a guy request his 10k service on a 09 Ultra classic yesterday and brought in/said it would be ok to put mobil 1 15w50 in his motor and primary. I told him I've never ran it or recommended it to anyone else, he insisted that it would be fine. I have my reservations about it but I have no history with this oil in bikes. Any concerns about that, or is it ok?