Cylinder Oils Taro® Special HT 70 Taro® Special HT 70 is a high performance 70 BN SAE 50 cylinder lubricant intended for lubricating slowspeed engines at very high mechanical and thermal loads. Taro® Special HT LS 40 Taro® Special HT LS 40 is a high performance 40 BN SAE 50 cylinder lubricant particularly intended for lubricating the cylinders of the latest generation slowspeed engines using low sulphur fuel and operating at very high mechanical and thermal loads reaching up to 160 bar in maximum cylinder pressure and up to 270 degrees Celsius in liner temperature at top dead center.