Wärtsilä Hired for VLCC Fuel Efficiency Upgrades 13 May 2020 The company will modify the engines of four tankers owned by Kuwait Oil Tanker Company over the next six months.Author: Capt. Johnhttp://feedproxy.google.com/~r/shipandbunker/~3/JuevARN5H58/152224-wartsila-hired-for-vlcc-fuel-efficiency-upgrades