I've been through the threads for what's synthetic, mineral oil etc, how to change oil, but unless I'm looking in the wrong place I can't find a definitive answer to "what oil do I need for my 2012/13 GSA 90th with 8600miles on the clock"? I live in the UK, just want a high quality oil to use if someone can give me a simple answer please, I'd be very greatful.
Not the most computer literate so forgive me if the answer is right under my nose.
Not the most computer literate so forgive me if the answer is right under my nose.

