Miss the smell so I finally tracked down a local retailer. What fuel do you all run? I have a 2020 Scat Shaker R/T maual and absolutely love the whole driving experience.
My car needs roughly 8-10% more fuel in the tune when running MS109. It definitely makes more power over pump gas. But without a tune it's a waste. Also, you really should have an A/F ratio gauge to monitor where your A/F is. If you mix it with a couple gallons of pump gas, it's hard to say exactly how much fuel you need to add. I like to keep the A/F around 12.2-12.5:1.This is really a use at your own risk oxygenated product, it is over 9% oxygenated by an additive, (MTBE) Methyl Tertiary Butyl Ether. Which means if your engine is not tuned for an increased oxygen level it can lean out at higher engine RPM. Racers know or should know to adjust the tune to run this, but this seems to be just Ohh Ahh!
Do not run this just to grab some extra power in your stock Challenger, or you may seriously regret it.
Research every product you use in your Challenger, and learn the hows and whys before you use it, and then use it at your own risk.