Best Oil For High Temperature Cooking?

I can't find expeller-pressed organic canola oil in my local supermarket. I see that you use grapeseed oil in some of your recipes in your most recent book Fast Food, Good Food. Is grapeseed oil better than canola oil for higher temperature cooking? 
Source: Dr. Weil Q and A - Category: Consumer Health News Source Type: news
More News: Grape Seed