It is suitable for use in transmissions calling for Ford MERCON® V, Ford MERCON (obsolete), General Motors DEXRON® -IIIH (obsolete), and Allison C-4 type fluids. Do not use CITGO TRANSGARD Multi-Vehicle High-Viscosity ATF in vehicles calling for Type F, DEXRON VI, MERCON SP, MERCON LV, Toyota/Lexus WS, and CVT's.