Been running rural king 0-20 in our 2012 Mazda 5. Still runs like the day we got it. 111K now and uses no oil between changes at 5K. A very nice motor.
Honestly if it wasn’t for the oil-pressure dependent cylinder deactivation, I’d be more open to trying less mainstream oils. Is the rural king much cheaper than QSUD or Magnatec at Walmart?
Dittos on the Havoline Pro DS. A quality oil at a great price. My SkyActiv runs great on it.
All this love for Havoline...honestly never tried it, though we use Chevron & Delo oils at the ranch with good results. Can’t seem to find 5 qt jugs at a reasonable price anywhere...just the 6qt boxes
You are the perfect candidate to test a no-name oil like Milesyn, Prime, Amazon Basic, SuperTech etc and compare it your known results. FWIW, I've been running Milesyn in my '18 Mazda3, 2.5L and it runs great.
BTW: I would not run a 0w16 unless the owner's manual offers that as an option.
Agree on the 0w16, not so much on the no-name synthetics on this particular engine. If the price is right, I’ll run any synthetic in my 375k mile ram 1500 4.7