Thank for the DIY, AK
Just got done with my first oil change on the Z (third overall) using Mobil 1 5W-30 and a Mobil 1 filter. I was going to get PureOne but Advance Auto had a deal and I got 5 qts of the oil for $25 with purchase of $8 Mobil 1 filter. Took oil sample and will be sending one to Blackstone for analysis each oil change going forward.
Biggest problem I ran into was my magnetic drain plug did not fit
I think I'll get a filter mag and a different drain plug for next oil change.