You're the one that fails, bud.

And Wankel rotary engines burn oil by design, so I don't understand the fail you handed out.

not a fan of 5w20 oil weight here. It's too thin.

I swapped out my 5w20 spec oil on my ford explorer 4.6L to 5w30 without any issues.

Sometimes they don't know what they are doing. Thin oil is used to maximize fuel efficiency. Weren't some RX8's spec'd with a 5w20 oil? on a vehicle that is known to consume oil and has a high rev range do you think that's okay? perhaps that's why there is an engine recall...

RX8s were spec'd with the wrong oil right from the start. It was done to help with fuel economy or something like that. Of course not too long after, RX8 owners found themselves with prematurely dead engines because it wasn't the right grade. And using any other grade voided the warranty. There's a reason these cars are depreciating faster than say, 350Zs.

It's not just RX-8s. Ask anyone with a BMW (especially M), turbo Subaru, etc. They all burn a bit of oil - it's normal and within factory specs to do so.