一般情况下,小孩的呼吸和心跳都要比正常人快,特别是在睡觉的时候,这种特征表现的更为明显,另外,小孩的各种器官都没有发育完整,也是会出现这样的现象的。所以,在小孩睡觉的时候,要保持房间的通气,保证房间内空气的含氧量;千万不能盖住小孩的嘴巴和鼻孔睡觉,大人陪小孩睡觉时也别对着小孩呼吸,因为你呼出的都是二氧化碳。
现在国产大众、奥迪车型还没用上GPF,使用VW50400机油的意义似乎不大。<br>VW50200的油和ACEA A3/B4比较接近<br>Stable, stay-in-grade Engine Oil intended for use at extended Drain Intervals in Passenger Car & Light Duty Van Gasoline & DI Diesel Engines, but also suitable for applications described under A3/B3<br>VW50400<br>以嘉实多的Edge LongLife 3 5W-30为例,它符合ACEA C3标准:<br>Stable, stay-in-grade Engine Oil with Mid SAPS-Level, intended for use as catalyst compatible Oil at extended Drain Intervals in Vehicles with all Types of modern Aftertreatment Systems and High Performance Passenger Car & Light Duty Van Gasoline & DI Diesel Engines that are designed to be capable of using Oils with a minimum HTHS Viscosity of 3.5 mPa⋅s.<br>VW50200和VW50400都要求 HTHS Viscosity 要大于3.5 mPa·S,VW50400的灰分,粘度比较低,对经济性有一定改善,更重要的是它是低灰分机油,适合带有DPF/GPF的车辆,可以减缓这个部件的老化。<br>VW50800:<br>以嘉实多的EDGE Professional LL IV FE 0W-20为例<br>它可能是一个ACEA C5标准的的机油(灰分0.75,因此不是C1,C4,而VW50800的HTHS要求大于2.6,因此不符合C1,C2,C3,C4):<br>Stable, stay-in-grade Engine Oil with Mid SAPS-Level, for further improved Fuel Economy, intended for use as catalyst compatible Oil at extended Drain Intervals in Vehicles with all Types of modern Aftertreatment Systems and High Performance Passenger Car & Light Duty Van Gasoline & DI Diesel Engines that are designed to be capable and OEM-approved for use of Low Viscosity Oils with a minimum HTHS Viscosity of 2.6 mPa⋅s.