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interesting that is another with elevated copper in its youth, viscosity debate rolls on, I noticed no real loss of performance, maybe slightly at the very top of the rev range (yeah the fun part) but barely perceptible if at all. I did notice a drop in engine noise and its well withing range...

I sent in the factory fill 0w-20 for UOA even though it was of dubious utility see https://bobistheoilguy.com/forums/threads/2022-mazda-miata-mx-5-factory-fill-0w-20-2-873-miles.364458/ , that UOA reported unusually high copper levels. Even though I knew logically the factory fill could show...

Good find! 2019 was the first year of the ND2 that included an engine re- design, so it would have the same engine as my 22. Assuming these two motors are following the same trajectory copper should move down over the next 10K miles.

Runs great, Pulls strong and winds freely to 7k+, no unusual noise, my average fuel mileage is crap due to city driving, 25 to 30 MPG dependly on right foot weight, I have not run a full highway tank yet but on the occasions that I do get steady cruise on the highway the dash indicated milage...

https://www.hexorcism.com/16ND/sh13017/

The proximity is an illusion, 2d flattening in a photo, I also see it in the photo, but in person where you get some depth there is plenty of clearance, the MX-5 motor is mostly based on the standard Mazda 2.0L skyactive, teardown here shows a better view, some changes to the crank head and cams...

The utility of sampling the factory fill is debatable but I could not wait to get a peak, I have a short commute and I was concerned about water and fuel in this direct injection motor. The sample pull was a disaster I knocked over the first sample and had to catch the last drips from the pan...

Puerto Rico is a US territory federal law applies there, Canada's regulations are harmonized with the US to make a unified automotive market https://www.transportpolicy.net/standard/canada-light-duty-fuel-consumption-and-ghg/

These things really are street legal go-karts, built with an obsession on low weight, especially this generation. the rear diff has a capacity of 2/3 of a quart, the transmission only 2.2 quart, that's not much volume to dissipate heat into, it makes sense to use the best you can find, This...

I did not know that this one has oil squirters, My land cruiser had them, it was part of that motors longevity.

This morning I ordered Redline MT-90 for the transmission and 75-90 for the rear diff, I like and have used redlines gear oils, I have never tried thier engine oil, never could quite choke down the price but this MX-5 has a small crankcase, and my commute is short. I should look into that as well.

I have some reading to do.

hmmm, I am aware there is minor loss in both power and effeciency with thicker oils. For 20 years I have been driving various Toyotas, inline 6's, and for the last decade Toyota v8's, none of them showed apparent power changes or measurable MPG change with oil selection, parasitic drag is just...

I have a 2022 Mazda MX-5 on the way, this year for Mexico the recommended weight moved from 5w-30 to 10w-30 for temps of 0f and above, the US 0w-20 is not recommended. here in the high dessert we get 115f summers and by next winter I should have moved south to basically Mexico weather. Going to...

Tha is where I am, Interestingly Mazda has rcomended 0w-20 in the MX-5 for several years including 2022, but in Mexico the recommendation was 5w-30, Now for 2022 the Mexico recommendation moved to 10w-30 for temps above 0f, no known changes to the 2.0L Skyactive G for 2022. motor is produced in...

A catch can reduce the amount of oil that makes it into the intake but by no means eliminates it. and this brings into to question their utility. I ran a catch can for a while it caught a good bit of oil/water mix in the winter and in the summer just oil. my assumption is that in the summer...

we have a shark, it does a good job with cleaning but the control app leaves a lot to be desired. it gets stuck in places and you are supose t be able to make "no go zones" but the bot just goes there and gets stuck anyway. look elsewhere.

Cold short trips yes fuel dilution can be a problem, but If you get your oil up to temp on occation for any significant amount of time most of the fuel will evaporate off.

2022 Mazda MX-5 manual is out, interestingly the 2021 5w-30 recommendation for Mexico moved up to 10w-30 SM, SN or SP, for basically any conditions above 0f (you if you live in the south) of course in the US only 0w-20, you do get a colder range down to -20f, AKA the north...

If the specified oil viscosity was actually from the people who designed & tested the motor you would have a very solid point. any amount of testing, research, or speculation I can do as a mechanic pales in comparison to what the manufacturer does in developing a new engine. But for quite a...