Question: The ends of my grass blades are visibly browned. What does that tell me?

Answer: It suggests you need to sharpen your lawn mower blade. Remove the spark plug wire so the engine can’t crank while you’re taking the blade off. Remove equal amounts from each side of the blade to keep it balanced. Re-sharpen the blade after every 20 to 30 hours of use, more often if it’s been used in extreme conditions.