I have two motors that I need oil recommendations on:
1) Stock longblock K20A (2.0L, 86x86mm), ~230WHP, running it to 8.5K daily. Motor has 55K miles on it, and running an open element air filter.
2) Built K24 block (Supertech 12.5:1 4032 alloy pistons), ported K20A head, big valves, big cams...