This article http://www.freemalaysiatoday.com/category/opinion/2013/08/17/three-hits-on-rakyats-pockets/ suggests November as the date for a raft of new / increased taxes.
1. increase in the price of RON95 petrol;
2. increase in electricity tariffs; and
3. implementation of GST (Goods & Services Tax).
From midnight (12.01 on 03.09.2013) the government raised the price for both RON95 petrol and diesel by 20-sen.