Some of the universal trans fluids say they are good with Dex VI, Toyota WS and Mercon LV. I want to drain and fill the power steering system in a 2017 Ford Transit van, which used Mercon LV. I have a quantity of Ravenol T-WS already on hand. Is it compatible with the Mercon LV or should I just buy a quart of Mercon LV and forget about it?