01-01-16, 09:37 PM
To add practical experience to this, I have a 600cc Honda Hornet (so not a fazer) but I have done 47,000 mile using semi synthetic car engine oil, the API standard is better than the quality stated in my Haynes manual. I do not mind sharing this info as I will run the bike till it is passed any resale value, as I have done with all the vehicles I have owned.