SHAH ALAM, May 3 — A palm oil tanker overturned and spilled its content on the road heading to Bandar Sultan Suleiman near here yesterday.North Klang district police chief S. Vijaya Rao said at about 1.55 pm the lorry involved, which was from Rantau Panjang, Klang, was going down a bridge when the tank lock came off the lorry’s head, causing the tank to fall into the left lane of the highway exit.“The 49-year-old male driver did not suffer any i…