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It can be tough for folks here to offer advice if they don't know what you're driving. Most will figure it out cuz you're specifying 0W-40 (6.4 Hemi) but adding that detail from the get go can be helpful. Additionally, this post should probably be in the "6.4 Hemi V8" sub forum. Admins?
I’ve never used the Pennzoil, but I’ll be using Mobil 1 euro 0W-40, because it’s a decent price at Walmart and because I have a good amount of it in the garage as it’s what my wife’s last two VWs used.
Although not that specific type I've been running PP in all of my rigs for at least the last ten+ years. It has a top notch additive package and with regular changes should serve you well for the life of the vehicle. Does it meet Mopar Specs?