Transmission heat is generated from 2 sources. Firstly, frictional heat when the oil film is ruptured allowing metal-to-metal contact. Secondly, heat is generated through fluid friction caused by the constant churning of the oil during operation. AW10 Antiwear is formulated to deliver tremendous increases in lubricant load carrying ability, wear reduction and friction and heat reduction. Semi trucks see reductions in gearbox and diff temperatures of 15 to 25˚F (9.5°C to 32°C). Find out more here…