I have a '21 GTR - 2/21 build date- with 10k miles. No oil consumption as of yet.

 

Interesting data point. Based on the TSB, this might suggest that between 3/21 and 9/21, Mazda temporarily sourced turbo engine valve stem seals from a different supplier (supply chain issues?), which turned out to be defective?

 

I would bet this is the case, We are doing the same at work- buying items from different vendors just to get stuff going but they are often lousy. That is why they are left !

 

I can only hope this turns out to be the case. Time will tell if my motor has the issue, or not.

 

I was at the dealer in NH for my second complimentary oil change and brought up the valve seal TSB for the 2021 Turbos. I talked to the shop foreman about it and he attended a class concerning this issue. He said he heard that possibly the valve seals for the DIESEL engine mistakenly were installed in these engines. Holy hell I can't wait to see what the fix might be. So far my car (2021 Mazda 6 GTR) with 4700 miles has no oil consumption yet.