Recently I used valvoline 10w30 and am quite satisfied with. Formula starts to change its colour at 2000kms whereas it was quite good till 3000kms. In my car after 3000kms there was a need to put about additional 50ml of havoline formula, but in case of valvoline this need arose after 4000kms.
The place to get it in lahore is filter house and last time I bought it in january for 2200rs 4 litre bottle