5W40 or 0W40 MOBIL 1

[Untertürkheim]

Originally Posted by ssonss1 thanks alot guys...so the 5w30 is fine....is there any benifit or reason to be running the 0w40 or something other than the 5w30? -30 weight oils are not allowed in AMG models, which would indicate that they may not offer as much protection.

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[m4xm1l10n]

I always use MOBILE1 10W 30 on both of my cars . told by the dealer an all season motor oil since in RI temps average from 100 in the summer all the way down to negative degree in the winter .

[Oliverk]

Originally Posted by Untertürkheim

-30 weight oils are not allowed in AMG models, which would indicate that they may not offer as much protection.

I'd say its less about protection, and more about clearances in AMG motors.

[JDB]

This topic has been discussed at length at the AMG Private Lounge site.

End result is this:


Mercedes-AMG in Affalterbach recommends:

AMG 55 engines should use Mobil 1 0W-40 M-B Spec 229.5

AMG 63 engines should use Movil 1 5W-40 M-B Spec 229.51


JDB

[Untertürkheim]

Originally Posted by JDB

This topic has been discussed at length at the AMG Private Lounge site.

End result is this:


Mercedes-AMG in Affalterbach recommends:

AMG 55 engines should use Mobil 1 0W-40 M-B Spec 229.5

AMG 63 engines should use Movil 1 5W-40 M-B Spec 229.51


JDB

This is wrong, please read this thread: http://www.mbworld.org/forums/3203930-post21.html

This link was post # 2 in this thread.

229.x1 oils are for DPF/Bluetec models only.

There is no reason to use Mobil, it is only one of the possible choices.

[Untertürkheim]

Originally Posted by Oliverk

I'd say its less about protection, and more about clearances in AMG motors.

All AMG engines except the 63 are modified MB engines. I think the high temp shear stregnth is perhaps the most important factor with the -40/50 weight oils.