Zth is about sharing information, so here goes the story.

My Recipe:
3 Bottles of Ace Hardware Motor Oil 10W40 (1L Each Bottle at RM5.50) = RM16.50
1 Bottle of Tufoil = RM59.00
1 can of Top1 Engine Flush = RM10.00
1 Fresh OEM Toyota Oil Filter = RM15.00
Total: RM100.50

Verdict:
Skeptical at first but fell in love with the results immediately after the first 20 minutes of engine shake-downs. On daily basis, I drive my 4A-GE 20V hard, really hard, 4000-8000RPM is my regular operating revs...