vintagemuscle
15+ Year Contributor
- 329
- 11
- Jul 19, 2005
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north olmsted,
Ohio
Is it really? I thought it says on the box to mix with 8 gallons of gas for best results. I could be wrong though.andymoraitis said:I typically mixed mine with 10 gallons and saw plenty of octane boost. It's made for 16 gallons so upping the concentration may not do anything at all for octane increases.