You should really preach this stuff on the late model Volvo boards (turbo/supercharged 4 poppers).And I know what they'll say to try to counter that, they'll say that car manufacturers only want engines to last just beyond the warranty period and nothing more, so the thinner oils are just enough to get there. That's also wrong. What manufacturer would actually want their engines to just barely make it that far? They are not likely to get repeat customers if that were to occur.
There you'll find several complaints by folks well within the warranty period, all running the spec'd 0w20 (also serviced exclusively at the dealership) with oil consumption and engine wear issues.
There's even a few just out of warranty requiring a full engine replacement despite being well below 100k miles. Their friendly dealerships/Volvo HQ has offered little to no assistance.
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