My buddy has a 2018 GMC Canyon Denali diesel. Headed to Alaska for about 10 days next week. Right now according to the weather it's -40F up there! OMG!! But it should be a few degrees warmer next week. We're going to do an oil change before we go. Currently it has whatever oil the dealer uses. We're going to use Dexos2-certified Pennzoil Euro 5W-30 from Walmart with an ACDelco filter. Will this be OK? Or do we need to hunt down a 0W-30? Thanks.