NGK Spark Plugs

  Myth 1: "E20 will destroy my engine." Vehicles designed for E20 are built with compatible materials. Concerns are more relevant for older vehicles, so check your manufacturer's guidance rather than relying on forwards. Myth 2: "Any spark plug works the same on E20." Plugs differ in materials, plating and construction. Choosing one designed for modern fuels and specified for your engine is sensible. Myth 3: "Mileage drops massively on E20." Ethanol has lower energy content, so some drop is expected. It varies by vehicle and driving style. A sudden, large fall usually has another cause, such as worn plugs, dirty filters or low tyre pressure. Myth 4: "Changing the spark plug will fix all E20 problems." It helps with ignition-related issues but can't fix everything. Fuel system and air filter health matter too. Myth 5: "Spark plugs last forever now." Even long-life plugs wear. Electrode gaps widen and deposits build up. Repla...

If you've filled up at an Indian petrol pump lately, you've probably used E20 fuel: petrol blended with 20% ethanol. It's part of India's push to cut crude oil imports and lower emissions. Most drivers ask about mileage. Fewer ask about the small part that starts every combustion cycle: the spark plug. What changes with E20? Ethanol behaves differently from pure petrol: Lower energy content. Ethanol carries less energy per litre, so the engine burns slightly more fuel for the same output. Higher octane. Ethanol resists knocking better, which suits modern engines. Cooler combustion. Ethanol absorbs more heat as it vaporises, so combustion temperatures shift slightly. Attracts moisture. Ethanol is hygroscopic, so it can pull in water vapour over time. Why the spark plug matters The plug sits inside the combustion chamber and works in the middle of these changes. It has to fire reliably every time and keep its electrodes and metal parts intact under conditions that can...