91 Octane

V5

This is 93 10%E plus royal purple octane booster. It randomly falls on its face, never when I log though. The tank after this (no log) was 91 10%E no additive and it threw a super knock cylinder 2. It’s mostly just a daily driver that I like to have fun in. Are we able to make a map that’s safe enough to be okay with occasional subpar fuel quality? I’d hate to cause catastrophic damage over a couple horsepower.