%u53d8%u901f%u7bb1%u4e00%u822c%u4f7f%u7528API%20GL-4%u7684%u8f66%u8f86%u9f7f%u8f6e%u6cb9%u5373%u53ef%uff0c%u800c%u540e%u6865%u5fc5%u987b%u4f7f%u7528API%20GL-5%u7684%u8f66%u8f86%u9f7f%u8f6e%u6cb9%u624d%u4e0d%u81f3%u4e8e%u635f%u574f%u3002%u6240%u4ee5API%20GL-4%u7684%u53d8%u901f%u7bb1%u6cb9%u7edd%u5bf9%u4e0d%u53ef%u4ee5%u6362%u5230%u540e%u6865%u4e0a%u7528%uff0c%u4f46%u540e%u6865%u4e0a%u7684%u6cb9%u7528%u5728%u53d8%u901f%u7bb1%u4e0a%u95ee%u9898%u4e0d%u5927%u3002%3Cbr%20%2F%3E
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如何选择空气压缩机油？下条：
如何为自己的爱车选择润滑油？
