Semi Synthetic Racing Trans Oil 1-Gallon

FTI Performance Semi Synthetic Racing Trans Oil is a purpose-built automatic transmission fluid engineered for high-performance and modified vehicles that demand superior shift quality and thermal stability. This 1-gallon container is sized for both small topped-off services and complete fluid changes on compact to mid-size transmission systems. Whether you're upgrading a street-strip build, a road-racing platform, or maintaining a heavily modified daily driver, semi-synthetic ATF bridges the gap between conventional mineral oils and full synthetics—delivering enhanced protection without the cost premium of 100% synthetic formulations.

The semi-synthetic base stock provides improved oxidation resistance and thermal breakdown protection compared to conventional ATF, critical when transmission temperatures spike during aggressive acceleration, heavy towing, or sustained track duty. FTI Performance formulations include friction modifiers and anti-shear additives that maintain consistent viscosity under load, preventing clutch slip and ensuring crisp, predictable downshifts even in high-demand scenarios. The 10-pound jug delivers clean, filtered fluid ready for immediate use, with packaging designed to minimize air exposure during storage and pouring. This fluid excels in modern electronically controlled and traditional hydraulic transmissions alike, adapting to both OEM and aftermarket valve body configurations.

Track enthusiasts, drag racers, and performance mechanics trust semi-synthetic racing transmission oil for rebuilds following clutch upgrades, torque converter modifications, or deep engine tuning that raises operating temperatures. Real-world application ranges from autocross competitors managing repeated heat cycles to road-course drivers maintaining transmission longevity under continuous load. Always verify OEM and transmission manufacturer compatibility before use, as some vehicles specify proprietary friction packages; however, FTI Performance's balanced additive package suits Allison, Turbo 400, Ford C6, GM 700R4, and most GM TH-series transmissions without issue. Store in a cool, dry location and reseal after each use to preserve fluid integrity.