Oil change - will this cause issues?

[Falcon 269]

Unlucky you, paying the price for someone else's ignorance.  

That's a good enough reason for many to say 'nah, not interested in deviating from bike-specific oil' and I understand that.  But like I said, it's so easy to work out which auto oils will cause problems and which will be good for bike engines.  You just have to be prepared to do a bit of research and use your noddle.