发表于 2011-02-24 20:49 IP属地：未知
刚才有看看了看网，发现如下
ACEA A3/B4-08OverviewACEA A3/B4 oils are Upper Mainline lubricants. They are designed for a use in high performance gasoline and light duty diesel engines and are typically used in newer vehicles as they provide the minimum performance demanded by many OEM specifications.
ACEA A3/B4 oils are probably seen in the widest range of viscosity grades. The most common being:
- SAE 10W-40 based on a mix of API Group I and Group III, or API Group II base oils.
- SAE 5W-40 and SAE 5W-30 based on API Group III base oils.
- SAE 0W-30 based on API Group IV base oils.
The main physical and **cal requirements for ACEA A3/B4 are shown below:
Depending upon the viscosity grade blended, ACEA A3/B4 is usually coupled with a range of OEM specifications including:
SAE 5W-40
- Daimler MB-Approval 229.3
- Daimler MB-Approval 229.5
- Volkswagen VW50200
- Volkswagen VW50500
- GM / Opel Longlife B
- BMW Longlife 01
- Porsche
是不是说明通过ACEA A3/B4 认证的机油就自动符合大众的502和505认证呢
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