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Old 11-05-2002, 10:55 AM
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Mobil 1 claim that their 15W-50 has more anti-wear additives than their other viscosities. Also, there is now some concern that Mobil/Exxon are now using a petroleum base for their 30 weight oils rather than the type 4 base used with the other ones.

Note that the Mobil 1 30 weight oils do not meet either of the Mercedes oil standards.

There have been debates about people doing their own blending of synthetic and non-synthetic oils and it's generally considered a dumb idea for more than one reason.
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