E300D, if you're worried about cold starting, then the 15W-40 Amsoil you mentioned will be superior to any dino oil. Better yet is 5W-40 Mobil Delvac-1, also known as Truck and SUV oil. In the states we can get it at Wal-Mart, but you may have more trouble locating it up there.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
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