Pennzoil^® Synchromesh Fluid is designed to offer optimal protection for moderately loaded gears in manual transmissions. Containing a high detergent additive system, it helps cope with water, dust, dirt, and any other small deposits you might encounter on or off-road¹. Pennzoil^® Synchromesh Fluid also offers synchronizer compatibility for performance in manual transmissions, specifically to fulfill the needs of Chrysler, GM, Honda and other transmission requirements.

Pennzoil^® Synchromesh Fluid meets General Motors specification 9985648 for use where GM part numbers 12345349 or 12345577 are called out for use. Chrysler manual transmission fluid specification MS-9224 is also met. This high quality manual transmission fluid is formulated for good low temperature flow to maintain shift characteristics even after a cold night². Corrosion protection is added to help protect your transmission.