I use the Mahle pistons with 1.5, 1.5, 3.0mm file-fit rings and my engine never burns a drop of oil between changes.
I've blown it apart twice since the initial build: once for a bad cam and another for a bearing issue (my fault). Honed it, slammed it back together and zero issues. Set top and 2nd ring gap initially at .024.
^^^^^^The rings that come in their PowerPak piston sets are excellent. They have now gone with a 1.0/1.0/2.0mm ring pack across their lineup and those work excellent as well. J.Rob
