Googling "honda earth dreams engine carbon build up" brings a suggestion to rev the engine up once in while to clean it:
https://www.thetruthaboutcars.com/2018/08/piston-slap-earth-dreams-of-carbon-buildup/
https://www.civicx.com/threads/carbon-buildup-and-the-cvt.21005/
My wife's 2015 CR-V with Earth Dream engine (DI) has ~65k miles on it and so far I do not feel any issues with it (knock wood
).
https://www.thetruthaboutcars.com/2018/08/piston-slap-earth-dreams-of-carbon-buildup/
https://www.civicx.com/threads/carbon-buildup-and-the-cvt.21005/
My wife's 2015 CR-V with Earth Dream engine (DI) has ~65k miles on it and so far I do not feel any issues with it (knock wood
).