市面上5w30和5w40的机油有什么区别,买哪种性价比更高?

2025-03-26 06:46:53
推荐回答(4个)
回答(1):

如果从四季通用机油来说,5w-30和5w-40这两款机油都是属于通用机油,所以在任何季节都可以使用,并且还能够保护发动机。关于w是指冬天的意思。那么w前面的数字只要越少,就代表它的粘度越小,这就说明只要这种机油低温情况下它的流动性做越好,对于这种机油来说就比较适合温度比较低的季节。那么对于这种机构来说,就特别适合东北那边的地方。那么关于w后面的数字代表在100℃下的黏度,如果数字越大说明黏度就好,例如5w-40这款机油来说要比5w-30这款机油黏度大也能间接的表明在高温下保护性能越好。
这方面需要考虑之外,对于在选择机油的时候,一定要根据车辆的使用情况进行选择,毕竟对于在城市经常开的车辆和在一些糟糕路段,开的车辆使用的机油也是不一样的,如果经常跑高速或长途的车辆来说,建议使用5w-40这种机油,毕竟对于这种机油来说具有很好的油品稳定性。

回答(2):

5w30和5w40的机油主要就是粘稠度指数不同。40的粘度比30的粘度大,德系车一般用40,美系用30。我判断机油的性价比主要是看换油周期和动力性能。比如说矿物质或半合成机油性能衰退的比较快,而我买的进口的魔‏力‏红‏机‏油是四类PAO机油,一万五公里的换油周期是矿物质或半合成机油没法比的,动力性能也很好。

回答(3):

机油5W30,和5W40哪个更好?很多车主都用错了

回答(4):

市面上5w30和5w40的机

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