UPDATE: Just hit 1K on 5psi at idle. Light comes and goes now at speed but still always on at idle. Changing oil again today for more M1/M1filter and witch's brew of Lucas+MMO. I'll move the OCI to 3K after a few more 1K cycles of MMO and then just roll with M1+Lucas. Still losing some coolant at the heads but still running perfectly nevertheless. Drove it two straight hours into Maryland and back a few days ago- no heat, no noise. That was the first long trip since it was declared dead. Amazing.