ADVERTORIALNATIONALLIOC increases petrol (92 Octane) from midnight May 18, 202023 Share0 (UTV | COLOMBO) – The Lanka-IOC (LIOC) has increased the 92 Octane petrol price with effect from midnight today. Accordingly, the price of petrol (92 Octane) has been increased by Rs. 5 per litre and the new price will be Rs.142.