very informative post indeed and i truly agree most of the mechanics here are Jugar Specialist , rare to find some good ones .
i did the paper test just to check , With the oil filter cap removed when u rev the engine it trys to suck in the paper , nearly got it stuck in the cap while doing it .
i wanted to know some one mentioned RETARDING TIMING , are we talking about the Retarded timing of the diesal pump , if so how to fix that .
i am using Liqui Moly oil in my 1hz engine ,Wanted to know when its time to change which LIQUI MOLY oil should i put it , i was told it can run for 6000 to 10,000 km , is that true .