I believe that this is the most polarizing discussion related to Mazda technology - The reason - as my aussie friend says sarcastically in his video - " so impossibly scary " ..,.
I had 3 new CX5s 22,23,25 and all were CDNA and logged extensive miles on each - 30-50k in all conditions - no issue - one which i thought occurred a few times was transition from 6-5th gear - slight delay - which was actually me and my paddle input - That said - I have noted carefully when my 25 CD goes on and off -at over 15k miles and , its definitly saved fuel and had zero issues just like the 22,23-But what if you want to drive without CD ? Corvettes have it ! even the manual transmissions - very similar system but not exact - as Mazda has a patent - The vettes shut down 4 cylinders of 8 the Mazdas 2 of 4 - So I road tested this engine for mileage and CD on/off - It does not operate in Park, Reverse or Neutral or 1st gear . If you are driving on any road in 2-6 gears it can come on -but under light loads only - Thus I checked for RPM threshold- and voila !Once I am at 3k rpms or above and keep it there - No CD ! I then engaged M/I drive or " sport " mode - and due to higher rpm shift points there was a marked reduction in CD activation , It is possibly programmed this way for sport .....Interestingly these engines really seem to like higher rpms -as driving in 5th at 3100+ Im doing 75 ~80 and get over 32mpg and the engine is not straining or loud - - I found that on side roads in manual the same applys at 3k+rpm no CD - So yes ...im a bit obsessed with it as I knew what I was buying and believe Mazdas engineers are among the best - they adressesed a PCM issue on the 18-19 CD systems - which of course was not mechanical failure but programming - and its never occured since - I take long trips and can say I definitly benifit from this system and like getting over 32mpg after 1000 mile road trips which are mixed driving - I have looked at the specs on the 2026 CX5 and Mazda only says theyre using the same engine as in 2025 ? But that the 26 will somehow get up to 38 mpg ? its not hybrid - so i suppose we shall see !!
The PR on the 26 is nothing but confusing as they cite HYBRID tech ....in 27 and the X engihe in 27 - so why did they mess with dang thing at all in 26 ? and just wait for a proper re-launch of a new model - theres a reason - but i can see it - anyone ?
I think Mazdas only mistake was what they called this -it does sound ominous - Other makes use differet language honda: VCM - vw ACT - Even Audi / Mercedes Benz , and Lamborgihni use it- and so on - " deactivation " just sounds iffy- MCM sounds better Mazda Cylinder Managment - but i dont make the big bucks on those decisions-

 

oh great another youtube from a person that is in it for the money and the last certification was over 2 decades ago. Yup right on top of subject matters but his following are like many on this forum that don't know any better.
I read and actually looked into the deeper background not necessarily easy to find about him LOL
I bet you didn't know that technically you are violating several copyright laws posting his youtube on this forum?
wow so many flaws in your posting information as well. Ok then....

 

Been following John for some time now. Very entertaining.

 

Honestly the guy is hilarious

 

Not breaching copyright laws to post an URL; commonplace on many forums.

 

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Yes - Thank you for the truth - Its good to hear different points of view - particularly in other countries - I just get a kick out of this guy and a good laugh l!

 

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You are sort of correct...
Courts generally agree that linking to another website does not infringe the copyrights of that site, nor does it give rise to a likelihood of confusion necessary for a federal trademark infringement claim. However, different kinds of linking raise different legal issues, and the law is not entirely settled in all of these areas. Moreover, some linking activities, like downloading and reposting, may expose you to liability for contributory copyright infringement or trafficking in circumvention technology in violation of the Digital Millennium Copyright Act (DMCA).

 

I would surmise - that if this potential or existing loophole were explotied and legally pursued ...there would need to be damages of some kind attached - or loss of revenue - aka anything to do with " intent "... demonstrated proof that harm or loss of the almighty $$$ occured - otherwise - who or why would anyone even waste the time - many laws are ignored unless damages are connected - ahh money - but yes Lobsta ....that does sound complicated and ambiguous - appreciate the tutelage !