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Anyone out there that maybe be able to read these numbers with a finer eye then myself care to share if you think either of these VR1 10w30 offerings can match or exceed the performance of the 5w40 Euro? Asking with idea of use in Mercedes/AMG M156 engines, which I know most will just say...

Hello Everyone, long time reader and visitor, first time posting... I have an 05' C55 AMG with a 6 speed manual swap. Most days I get to drive it now are either backroads weekend fun or auto X/track days. In my ownership thus far, I began with Mobil 1 0w40 4 years ago, but the car would chew it...