Apart from O ring check which is quite important, what is the ambient temp in Virginia in the mornings, if below 45F I would switch to a thinner 5W-40 oil which would unfortunately be the expensive synthetic like Delvac-I.

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99 Gurkha with OM616 IDI turbo

2015 Gurkha with OM616 DI turbo

2014 Rexton W with OM612 VGT