I just traded cars and switched from a AMG mercedes to a Dodge Dakota. Looking at the spec's for the Dakota [4.7 V8] it asks for 0w20. I happen to have a metric ton of 0W40 Euro spec Mobil1 left over from the mercedes, [like 6+ cases] and all of my oil analysis seems to point to this oil being some of the best Mobil1 makes.
Is there any reason I wouldn't be able to use the 0w40 in place of the 0w20?
Is there any reason I wouldn't be able to use the 0w40 in place of the 0w20?