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agreed, some may argue it's a waste on money, but I'm going to stick with OEM moly oil that came with the CX-5......
the moly content is off the charts compared to other oils..... I'm up to 40,000 miles with no issues at all, always used Mazda filter and moly oil.
http://mazda3revolution.com/forums/2014-2017-mazda-3-skyactiv-engine-performance/54850-oil-used-2-5-2-0-skyactive-2.html
Source - Bobistheoilguy Oil Analysis postings.
Mazda's new oil is light but has a very impressive VI:
Mobil 1 5W-20
SAE Grade 5W-20
Viscosity @ 100C, cSt (ASTM D445) 8.9
Viscosity, @ 40C, cSt (ASTM D445) 49.8
Viscosity Index 160
Castrol Edge
SAE Grade 0W-20
Viscosity @ 100C, cSt (ASTM D445) 8.65
Viscosity, @ 40C, cSt (ASTM D445) 45.08
Viscosity Index 174
Compare this to the recommended high moly Mazda 0W-20:
Kinematic Viscosity at 100 degrees C (cSt) 8.3
Kinematic Viscosity at 40 degrees C (cSt) 35.0
Viscosity Index 225
Viscosity Index (VI) is an arbitrary scalar value that indicates the change in an oil’s viscosity with
changes in its temperature. A high Viscosity Index indicates less viscosity change when temperature increases, indicating better resistance to thinning, for a given oil and, likely better film strength retention under heat duress.
http://www.kittiwake.com/sites/defau... Dec12_0.pdf
Some of the additives (especially Moly) are off the scale compared to these other oils.
Mazda:
ZINC 842
MOLYBDENUM 664
BORON 266
Mobil1 0W-20
ZINC 787
MOLYBDENUM 54
BORON 73
Castrol Edge:
ZINC 852
MOLYBDENUM 107
BORON 113