As long as you can maintain good pressure and flow, you should be OK. The new synthetics are sooooo much better than the petroleum-based lubes I grew up with. Heck, even dino oil is a lot better now.
I predict that materials/construction and lube technology will continue to improve so that recommended viscosity will drop to 0W10. But I got stuck with a bunch of Enron stock, so I'm no oracle.
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