Can't you buy something that boosts octane at the auto parts stores?
Here's post on the Prestone website.
Q. I'm constantly hearing about octane booster products. You say 0 to 60® can boost my octane by up to 10 points. What's a point and how does it relate to my car's performance?
A. The term "points" is commonly used in the automotive industry when referring to the octane increase a product offers. This is different from the figures shown at your local gas pump, where the octane "rating" of a gasoline is measured in "numbers". This can sometimes create confusion as to how "points" translate to "numbers". The following calculation can be used to translate points to numbers:
1 octane point = 0.1 octane number
Increasing the octane of gasoline has several positive effects on automobile performance. A higher octane gasoline will allow a car to run smoother by reducing knocks and pings, which ultimately restores lost performance.
An example of this might be:
Common regular unleaded gasoline is rated at 87 octane at the gas pump. If you treat that gasoline with an octane enhancement product that claims a 5 "point" increase, then the end result will be a gasoline that has an 87.5 octane rating. In this example, the octane enhancement product provided 5 "points", which is equal to 0.5 octane numbers.
Prestone® 0 to 60® Booster provides 10 points of octane increase, which will increase the octane of regular unleaded gasoline by a full number. In this case, an 87 octane rated fuel would go to 88 after treatment with Prestone® 0 to 60® Booster.
I have never used the stuff and don't know what it costs. I'd just dump the mix in my truck and get some new mix.