- Thread starter
- #21
kingcat162
Active VIP Member
If you look at the vp race concentrate jug it has no chart for mixing to give you an idea of how much to add to get to a certain octane level - all it says on the jug is that it will treat about this ..... much fuel and it will bring it up by so many numbers - shellbourne charts it for you for just about every scenario - base fuel 87 or 91 and how much to add to reach the desired octane levels