> ...I was under the impression that ZDDP is important only with solid > lifters which is why (considering the relatively small number of solid lifter > cars in full service) the oil makers were willing to pull it out... > Not solid lifter.
Flat tappet engines. My Porsche 944 is a flat tappet engine with hydraulic lifters and M1 15/50 still has the required amount of ZDDP for that engine and for that reason I stopped using M1 0W40 in it. All aircooled Porsches are flat tappet engines, also. My C300's M272 engine is OK with 0W40 or 5/40 M1 and I'm using 0W40 because of availability. RLE > > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
