http://www.amsoil.com/lit/g2156.pdfI found it interesting how well the conventional Valvoline oils placed. I am constantly looking at conventional (dino) and synthetic-blend oils that are compatible with our bikes and the britbikes and available at common commercial sources. (like Autozone).
I'm using a Spectro 10W40 Synthetic blend for winter ops. I'm thinking about switching to Valvoline as I'm already using the Valvoline products in the drive train.
The Valvoline look like good value for the money.... :-?