Knock on wood, 100% new OEM long block now 13K miles young, zero oil consumption, 85-90mph hwy power no sweat on 37s. Broke it in with many 3-4K RPM sustained pulls on trips to LA-SLC-LA-SEA-LA. Bombed up Grapevine Southbound at 80-85mph with AC on, overdrive off. EZ.
5W-30 Pennzoil Ultra...