Hey there, if you've got engines that sit around for months (or even years) without use, you NEED this stuff. PRI-G is like a fountain of youth for your gasoline - it keeps fuel fresh and ready to go for years, not just months. Whether you're storing your car, boat, RV, or that emergency generator that might sit for ages, this stuff prevents gasoline from going bad. But it's not just for storage - it actually improves your engine's performance right now! We're talking better combustion, more power, improved fuel economy, and it reduces that annoying knocking and pinging. It works with all types of gasoline including E-10 blends, and it's safe for both 2-stroke and 4-stroke engines. The best part? It contains no alcohol, so it won't damage your fuel system. If your fuel has already aged, PRI-G can actually restore it to refinery-fresh condition. Seriously, this is one of those products that actually delivers what it promises - your engines will start easier, run better, and last longer. Just treat your fuel annually and you're good to go, literally!