I believe lemmy.world is to good for it's own good. As one of the largest instances it is under constant attack. This sucks as a user but has lead to many improvements in the code.
I started out there and started a community there. Since then I've moved to a much smaller instance as my main account and contribute monthly. It would be really nice if I could move the community as well.
Unfortunately, I don't think there has been research here.
Hopefully since the start of COVID (it is not over) any new builds or upgrades will include fresh air and filters. This is already done for large gatherings of national leaders so the tech is available.
It has the 2.2L which doesn't have the head gasket issue. But, it probably would have lasted longer if the timing belt was changed as recommended.