Quote:

Chevy put ti rods and ultra light pistons in their modern LS7 small block because the Mobil 1 5w30 they "swear by" as their factory fill oil couldn't maintain adequate film strength in durability testing with more normal weight parts... and that's only a 500 HP (SAE net) hydraulic roller street engine.



For what its worth this is not the first time I've heard of issues with Mobil 1 5/30 film strength, apparently it loses film strength very quickly with use.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street