2015 KTM 1190 Adventure @ 12,500 km,
OUT: Motorex Cross Power 4T 10W60, KTM OEM filter, OCI 11,500 km, 15 months.
IN: TOTAL Quartz Racing 10W50, KTM OEM filter.
This is the first time I've used this particular oil, but I've been using Total products almost exclusively for the last few years. Their prices are simply unbeatable when shopping direct at the local distributor... like about half the price of equivalent products at auto super-stores (Mobil, Castrol etc).
The Quartz may be overkill, but it is less than half the price of the Motorex from the KTM dealer. Given the bike is still in warranty, I'm prepared to pay a bit more to ensure the oil quality is not in doubt. Normally I use Total Racing 4T which is their "full synthetic" albeit Class III. When I asked about the base oils, they said it was not disclosed, but they expect that Quartz is more than half Class IV base, and Racing 4T less than half Class IV base.
I bought the last pack of Quartz they had. They said the Racing 4T is so good (and nearly half the price) that most of their customers are going to that instead. And it is no longer listed on the manufacturer's web site either.
The spec is 3.6 L but most people find it takes 4.0 L to get to the upper fill mark. I started with 3.6 which was about in the middle of the acceptable range. I added 250 mL, then another 150 mL once the bike was fully warmed up to ensure it wasn't over-filled. The 4.0 L is perfect.