Petro-Canada ATF+4R is an automatic transmission fluid specially formulated to meet the needs of Chrysler automatic transmissions. This highly shear-stable fluid delivers superior shift performance and wear protection in the Chrysler transmissions for which it was designed. Meets Chrysler MS-9602 specifications. Suitable for top-up or complete fluid changes. It may also be used where earlier Chrysler fluids, such as Chrysler ATF+3R were recommended. Petro-Canada ATF+4R contributes to the overall performance of the transmission by delivering optimized shift efficiency, exceptional oxidation and shear stability and extended drain intervals over ATF+3R fluids.