![]() ![]() With nickel plugs, especially with motorcycles, the gap may need adjustment. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.ĭENSO spark plugs are manufactured with a pre-set gap. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. What’s the difference between iridium and platinum spark plugs? You can use either a feeler gauge or a spark plug gauge to gap your spark plugs. ![]() Can you use a feeler gauge to gap spark plugs? ![]() An engine runs best with the widest gap the ignition can reliably fire. Too wide a gap causes the ignition parts to fail. ![]() This puts a greater strain on all the high voltage parts, coil, wires, distributor, etc. Is a wider spark plug gap better?Ī wider spark plug gap does a better job of igniting the combustion, but it requires higher voltage to fire. Should I put dielectric grease on spark plugs?Įven though it isn’t necessary, putting dielectric grease on spark plugs is highly recommended as it helps keep them free of corrosion, prevents the spark from arcing, and ensures that the plug’s rubber boot doesn’t bond to the ceramic portion of the plug. Also, the double-electrode technology and durable materials are other advantages. The real difference lies in thermal transfer between electrodes and engine cylinders. There is no doubt that NGK spark plugs are great, yet Bosch ones also work decently at ignitability and combustion. For BMWs with V8, V10, or N54 or N63 engines, 37000 miles are the threshold before getting new spark plugs. In most modern BMWs, manufactured after 2010 with the N20 or N55 engines, it is required to change spark plugs every 60,000 miles. Labor costs are estimated between $126 and $158 while parts are priced between $86 and $149. The average cost for a BMW X3 spark plug replacement is between $212 and $307. How much does it cost to replace spark plugs in a BMW X3? The average cost for BMW X3 Engine Tune-Up is $200. Or, choose the Denso 4504 PK20TT Platinum Spark Plugs, an affordable platinum spark plug that delivers excellent durability and performance. Are NGK Spark Plugs any good?įor a high-quality spark plug, consider the NGK 6619 Iridium IX Spark Plugs, featuring excellent performance, power, efficiency, and reliability. What’s The Lifespan Of An Iridium Spark Plug? The average, modern iridium spark plug should last for 3-4,000 hours of engine uptime, depending on the gas quality. How long should iridium spark plugs last? What is the factory gap for NGK Spark Plugs? If the gap is larger the spark takes longer to jump between the electrodes, which delays the firing time of the compressed air/fuel mixture, which causes the engine to be much less efficient. Does a bigger spark plug gap affect performance?ĭoes a larger spark plug gap affect engine performance? The plugs should be gapped to the quoted specification. However, if the gap is too large, and the ignition system can’t provide the voltage needed to spark across the gap, or turbulence in the combustion chamber blows out the spark, misfires will occur. Many think the larger the gap, the better. What happens if you gap spark plugs too much? Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations. Iridium Power Gapping Tips In most cases your Iridium Power plugs do not need to be gapped. NGK recommends a round wire-style or pin gauge gap tool to measure the gap. Care must be taken to avoid bending or breaking off the fine-wire electrodes. While most NGK spark plugs are pre-gapped, there are occasions when the gap requires adjustment. ![]()
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