Denso 5285 May 2026

When it comes to maximizing engine efficiency, fuel economy, and longevity, the spark plug is often the most overlooked component in a vehicle. While many drivers focus on oil changes and air filters, the small but mighty spark plug dictates exactly how well your engine burns fuel. Enter the Denso 5285 .

For the driver of a Honda Civic, Toyota Corolla, Nissan Altima, or Mazda 3, swapping to the Denso 5285 is a "fit and forget" maintenance item. You install it, torque it to spec, and drive for the next 100,000 miles without a single misfire. denso 5285

| Feature | Denso 5285 (TT) | NGK Iridium IX | Bosch Double Iridium | | :--- | :--- | :--- | :--- | | | 0.4mm Iridium | 0.6mm Iridium | 0.5mm Iridium | | Ground Electrode | 0.7mm Platinum (Tapered) | Standard Platinum pad | Iridium (Flat) | | Voltage Requirement | Lowest | Medium | Low | | Durability | 100k miles | 80k miles | 100k miles | | Best For | Fuel economy & smooth idle | High RPM performance | Turbocharged engines | When it comes to maximizing engine efficiency, fuel