dear all,, i dunno weather this thread is alive or not,,, but lemme share my experiences i hold Toyota corolla Indus 2000 and used zic a+, zic a, shell (blue one), castrol gtx, mobil 1, but to be honest after turning towards petron i m pretty much satisfied,,,, engine seems silent and acceleration is fine as well, its like 3 times ive changed petron in my car. and believe me it is is fine condition at 5000km,,,,well as per my satisfaction it dosen't seem well to me going beyond 5000km.
but again its what i feel...