Interesting!

I've noticed that a lot of new petrol engines are now requiring high grade low ash oil & not allowing lower grade alternatives.

Heard on the grapevine that there is 40% EGR openings coming. Boffins must have made it achievable in the lab. Begs the question how does it work in the real world of old biddies just running a few hundred yards to the shop for a tin of pussy food.