Oil & Fuel

Pick the right oil and fuel, and store them well

The wrong oil or old fuel can quietly shorten an engine's life. These guides explain oil types and viscosity in plain terms, how to check and change oil, and how to tell four-stroke and two-stroke engines apart. You will also learn how fuel goes stale, when stabilizer helps and how to store fuel safely. Always use what your manual specifies, mix fuel exactly as directed and keep containers sealed and away from heat or flames.