I want to change my transmission and transfer case oil in my Toyota(3RZ-FE) 4x4 pickup with synthetic oil this oil seems the most popular here in South Africa.(I am not sure if you get it in the US?)
I want a smoother shift as the shift with mineral oil isnt that great.
I have heard that 4x4's do have more back lash when shifting because of the tranfer case?
Here is the TDS for Castrol BOT 130M:http://www.castrol.com/castrol/liveasset...OT_130M_TDS.pdf