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Old Jun 6, 2006 | 04:49 PM
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Oil question

What viscosity of oil do you guys use? Did anyone try Royal purple? I heard it freeups some HP.
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Old Jun 19, 2006 | 02:44 PM
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Originally Posted by Shaun
What viscosity of oil do you guys use? Did anyone try Royal purple? I heard it freeups some HP.

Mobil1 0w-40 European formula MB spec 229.5.
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Old Jun 19, 2006 | 03:24 PM
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Originally Posted by PA55AMG
Mobil1 0w-40 European formula MB spec 229.5.
There is a new spec 229.51, 5w40, Mobil 1. Should have become available on May 15.

I posted the TSB in the tech forum.
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