M5 is simply the best performing methanol on the market. With its upgraded combustion additives, M5 will make more power than M3, meaning 5-7% more power than standard methanol, while offering the same or better protection against detonation. Like M3, M5’s improved vaporization offers a wider acceptable range of air/fuel ratios and tuning, as well as faster combustion speeds. M5 is not pure methanol and won’t pass a water test. 18,93L packaging.