ELF HTX 850 is a multigrade lubricant specially developed for 4-stroke petrol engines working at a wide range of temperatures.  

ELF HTX 850 offers the high protection properties of a 5W-50 grade and performance gains due to its improved formulation under prolonged heavy loading. 

ELF HTX 850 is used for the following applications: 

• 4-stroke naturally-aspirated or turbocharged petrol engines  

ELF HTX 850 is perfectly suited for competitions of medium and long duration: 

• Circuit 
• Rally
• Endurance