Is the Original Spark Plug for BMW 7 Series NGK?
1 Answers
The original spark plug for BMW 7 Series is NGK. The replacement cycle for spark plugs is as follows: 1. The material used in the spark plug has a decisive impact on its replacement cycle. 2. Currently, the mainstream spark plugs on the market include copper core, nickel alloy core, platinum core, and iridium core. 3. Copper core spark plugs are recommended to be replaced every 20,000-30,000 kilometers; nickel alloy spark plugs have a slightly longer cycle and can be replaced every 40,000-60,000 kilometers. 4. Iridium and platinum core spark plugs have more stable metal properties and better oxidation resistance, so their service life is relatively much longer. Platinum core spark plugs are recommended to be replaced every 80,000 kilometers; iridium core spark plugs are recommended to be replaced every 100,000 kilometers.