2024 Mazda CX-50 2.5 NA 12k mi; Mobil 1 ESP 0W20 4.6k mi

[donald53]

First oil analysis of my daughter's CX-50. 4,600 miles on oil, 12,000 miles on vehicle. This is MOBIL 1 ESP 0W20. I've run this oil since the first oil change at around 1,400 miles. Filter is MICROGARD SELECT MSL57002. Vehicle is mainly driven city miles of 30 - 40 miles per day. Every other week it goes on a 120 mile round trip for work at interstate speeds (70-80 mph). Some noteworthy observations:
OXIDATION 42.5 ASTM D7414
SILICON 21 ASTM D5185
ACID NUMBER 1.18 ASTM D8045

VISCOSITY AT 100 degrees C 7.6 ASTM D445

 

[spasm3]

Wear numbers look good. Tbn low for only 4600 miles and not short tripped. Surprised at minimal fuel dilution. My Mazda almost always has fuel dilution.

 

[OneLonelyBurrito]

The report looks excellent. I’m also surprised by the fuel dilution number, I would have expected a little bit. You can definitely extend the OCI if you want

 

[JavierH19]

Looks great. With that good acidity and oxidation go longer if you wanted. ESP is a great lineup.

 

[Sandstorm]

I was under the impression that there is no molybdenum in the ESP formulations. Maybe that has changed

 

[mitsuman47]

I was under the impression that there is no molybdenum in the ESP formulations. Maybe that has changed

I wonder if could be residual from the OEM Mazda oil (if this UOA is of the first oil change). I believe the Mazda oil is high in moly. And, most of my vehicles have always had smaller amounts of oil exchange during an oil and filter change than the initial fill.

This is from the factory service manual for my Accord w/K24.

 

[donald53]

This analysis is of the second complete oil change and filter.

 

[FZ1]

First oil analysis of my daughter's CX-50. 4,600 miles on oil, 12,000 miles on vehicle. This is MOBIL 1 ESP 0W20. I've run this oil since the first oil change at around 1,400 miles. Filter is MICROGARD SELECT MSL57002. Vehicle is mainly driven city miles of 30 - 40 miles per day. Every other week it goes on a 120 mile round trip for work at interstate speeds (70-80 mph). Some noteworthy observations:
OXIDATION 42.5 ASTM D7414
SILICON 21 ASTM D5185
ACID NUMBER 1.18 ASTM D8045
VISCOSITY AT 100 degrees C 7.6 ASTM D445View attachment 261197View attachment 261198

Looks good. Ain't no wear. 5,0000 oci. .02

 

[buster]

Wear numbers look good. Tbn low for only 4600 miles and not short tripped. Surprised at minimal fuel dilution. My Mazda almost always has fuel dilution.

That's TAN not TBN.

Everything looks good. This is a low wearing engine. The only thing about these ESP oils are the lower detergent levels. This oil only has 1,557 ppm of ca. as a detergent. So long drains I would not be comfortable with. However with no oxidation and TAN low you're good.

 

[buster]

I was under the impression that there is no molybdenum in the ESP formulations. Maybe that has changed

Only ESP 5w30. For some reason they made major changes to that grade. They removed the ester as oxidation is now around 10, virgin. Remains unknown what they're using in that grade.

 

[fantastic]

Good looking report. Surprised at the high oxidation of this oil so must be pretty high starting.

 

[buster]

Good looking report. Surprised at the high oxidation of this oil so must be pretty high starting.

I think it's around 37'ish.

 

[spasm3]

That's TAN not TBN.

Everything looks good. This is a low wearing engine. The only thing about these ESP oils are the lower detergent levels. This oil only has 1,557 ppm of ca. as a detergent. So long drains I would not be comfortable with. However with no oxidation and TAN low you're good.

Thanks! Its what i get of looking at this on my phone! Report looks great overall.

 

[Al]

Sheared down quire a bit

 

[MalibuRam65]

Sheared down quire a bit

That’s what Mobil oils do SMH. But it still in spec I believe