I'm planing to have the full three places based on top speed, plus a single prize for closest to average.
From what I've seen and read, glows top out at about 101 to 104 on 10% standard fuel and F2C diesels go 108 on any fuel they want. So limited glow vs unlimited diesel has a known result.
Last year, after a lot of tweaking in on 10 nitro, 11 castor and 11 synthetic, the top three speeds were 101, 100, and 98. Maybe 10-10-10 will be a little better. There was some complaint about excess lubrication.