My son's go kart has a 10hp Robin-Subaru air cooled engine on it. The Owner's manual calls for either 30wt or 10w30 motor oil. I dont know how long it has been since the previous owner changed the oil, nor what type he used. It does, however, run very well and it does not smoke at all. A neighbor gave me a case of Royal Purple 10w30 and said he uses it in his car and truck. Should I go with the RP or is there something better?
Thanks!
Thanks!