Again, one person (a different one this time).Some folks are suggesting that the VCM has narrow passages that the OW20 oil flows through better.
Okay, I'll play along.... You're suggesting that Honda has moved to 0W-20 at least partly to help deal with their VCM system ? Yet you fail to acknowledge that a) Honda still uses VCM today, keeps updating it (they're on "VCM-3" currently), and recommending 5W-30 engine oil (in other countries).No. Cause comes before effect. Honda quite clearly built a VCM system, without realizing or intending that it would be problematic.