蓝
黑烟：发动机燃烧不完全，蓝烟：机油进入燃烧室，蓝灰烟：混合故障。
Understanding Black说真的 SmokeWhen you notice a thick, dark cloud emitting from your car's exhaust, it's signali···
Understanding Black说真的 SmokeWhen you notice a thick, dark cloud emitting from your car's exhaust, it's signali···
