Here's the claim, right from their website:
Octane Supreme 130 Octane Boost
oz. per 1 US gal. (full points) R+M/2
.6 2.0
1.2 3.5
1.8 5.0
2.4 6.5
3.0 8.0
6.0 11.0
18.0 16.0
Boosts Octane from 2–16 full points
(not 0.1 points but full octane numbers)
Protects and lubricates the valve train.
1.2 ounces of Octane Supreme 130 to 20 gallons (US) of fuel
provides the minimum amount of lead protection
needed to maintain and lubricate engines designed
to run on leaded gasoline.
1.8 ounces of Octane Supreme 130 to 10 gallons (US) of fuel
will turn a 93 octane into a 98 octane.
3.0 ounces of Octane Supreme 130 to 10 gallons (US) of fuel
will turn a 93 octane into a 101 octane.
(Octane numbers in this section are based on R+M/2)
Due to US EPA regulations this product is for off road use only.
http://www.kemcooil.com/products.php?cId=4
1 quart (free shipping to USA only) $20.75
In the early 90's, I used 100/130 aviation gas in my race motorcycle. It had 12.5/1 compression and was raced on the West Coast at sea level, primarily. It worked fine, just as good as the race fuel sold at the track for big bucks. It did not damage my motor at all. Now, however, you would have to buy 100LL, which does have more lead than pump gas. Don't think that's a bad thing, however. The additive product above is, after all, tetra-ethyl lead. Aviation fuel is formulated to prevent vapor-lock, which isn't a problem when you're rolling on the ground (you just pull over and wait till things cool). Also, most 4 cyl aircraft engines are low compression by our standards and won't knock.
Paul