update on TCP with the iswara:

knocking fully resolved, may consider to advance back my ignition timing lol
no significant improvement in response/power though (maybe still on the retarded ignition timing)

4 bottles available at Caltex beside Giant at Bayan Lepas, Penang. Bought 1 bottle to try out.

At 1st bought for RM45 after questioning them about the outrageous price (Price tag printed was RM145 lol). After 1 hour of driving I decided to fill in petrol at the same Caltex petrol station. That was when I saw the big sticker promoting techron concentrated plus for RM35 till 31 August 2014. Took a picture and went inside to question them again (I brought the bottle along as I still haven't use it). Initially the lady at the counter said maybe it is because that stock is old and the price for old stock is RM45. I told her that this product is new and it is at introductory stage, how can it be old stock? Plus the sticker clearly says it is till 31st August 2014. Told her to check properly again. After calling someone on the phone, she finally refunded me RM10.

Glad to get it cheaper but the staffs are really 

Sapu there already laa, I recommend you go Salak South Garden...