2019 Mazda CX-5 2.5T FF 5w30 6230 mi

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34,055
Location
Southern NJ
Congrats on the CX-5. Good choice. Results are what I'd expect. What oil did you switch to? Also how did you break-in the engine? Just curious.
 

leeharvey418

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778
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Southeast Michigan
Hey, thanks. New fill is vanilla Mobil 1 5w30. Next fill will likely be Harvest King full synthetic. This fill saw a very high percentage of highway miles, probably 70-80% of the total. I subscribe to the 'drive it normally without being stupid' theory of engine break-in, and the CX-5 was no different. I've recently heard about the benefits of compression braking when seating rings - Mazda's transmission logic will downshift if you're riding the brakes down a hill, so the engine got a fair amount of that without me having to put it in manual mode.
 

leeharvey418

Thread starter
Messages
778
Location
Southeast Michigan
Originally Posted by diyjake
I would try 5k OCI to try to keep the viscosity from getting so thin.
Yeah, this fill will definitely get a UOA. I want to see if the factory fill was maybe thinner than what they recommend for continuing fills.
 
Messages
34,055
Location
Southern NJ
Originally Posted by leeharvey418
Hey, thanks. New fill is vanilla Mobil 1 5w30. Next fill will likely be Harvest King full synthetic. This fill saw a very high percentage of highway miles, probably 70-80% of the total. I subscribe to the 'drive it normally without being stupid' theory of engine break-in, and the CX-5 was no different. I've recently heard about the benefits of compression braking when seating rings - Mazda's transmission logic will downshift if you're riding the brakes down a hill, so the engine got a fair amount of that without me having to put it in manual mode.
The M1 5w30 is a great choice for a turbo. I agree with your break-in approach and it looks like you have no oil consumption. smile
 
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