Explaining a car on Instagram: "Inside an engine, the piston and cylinder are engineered with microscopic precision — so precise that there’s virtually no room for anything to get in the way. ⚙️🔥 The piston slides up and down inside the cylinder with just a tiny film of oil separating the two surfaces. This gap is so tight that even a grain of dirt, a shaving of metal, or a drop of debris can cause scratches, scoring, or total engine failure. That’s why clean oil, good filters, and proper maint