Q: Last winter, when I put my bike up for storage, I bought some fuel stabilizer to keep the gas from gunking up the engine and fuel injectors. I poured a bottle of it into the tank, and the bike sat for several months before the weather warmed up enough to go for a ride. But after I started the engine and rode it awhile, it started making loud pinging sounds, like detonation, and wouldn't run right until I drained the tank and put fresh gas in it. I thought the fuel stabilizer was supposed to prevent this. Why do you and every other magazine recommend using fuel stabilizer over the winter?