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The different specs that are published by ASTM, SAE, etc., are written to support certain qualities pursued by the various vehicle OEMs and component suppliers. The members of the committees that author the specs are typically engineers and SMEs from those different companies.ShaKarz wrote:2 oils are shown with different base testing standards, tbn value, random selections One standard claims to be used on fresh oils, the other on used oils. What's the difference in terms of engine protection and these 2 standards?
The other concern is acidity caused by high sulphur fuel and how fast the alkalinity of these oils break down. Anyone has any test results of sulphur content and cetane value of current pump diesel?
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