I found this Blog with excellent charts and such.

I saw one HCH owner saying Mobil 1 is the way to go - but not according to these charts!


Also Honda has their own OW-20 oil - I wonder if anyone has seen any compares on that?

I have my local GoodYear shop do my changes and tyre rotations - been using them for years and they do a good job - but they are using Valvoline Synthetic - seems to get excellent ratings.

What is the best oil out there?