This Fluid is best for Street and some track driving -  80w150 for heavy track use

Cusco 75W-85 Hydride purified gear oil that is specially formulated to be promote smooth engagement and longer life for the syncromesh gears inside the transmission. A friction modifier agent is blended into the fluid where it also promotes limited slip differential lock-up effectiveness and overall improved shift feeling.  This gear oil applies to all transmissions, LSD equipped or not and maintains stable lubrication properties at various heat ranges.

Link to Cusco Diff Guide 

SPECS:


ITEM NOTES:

The exclusive Cusco Oil Through System enhances great oil circulation and supply to the necessary areas when used with the Cusco LSD Oil.

VEHICLE NOTES:


APPLICATIONS:

SCION FR-S -ALL
SUBARU BRZ -ALL