Castrol Transmax Manual 90 is a high-quality mineral-based manual transmission fluid specifically formulated for use in manual gearboxes and transaxles where API GL-4 performance is required . Designed to provide reliable lubrication and protection for passenger cars, light trucks, and commercial vehicles, this 4-liter fluid delivers good thermal stability, anti-wear protection, and consistent performance in varying operating conditions .
Product Features:
API GL-4 Certified: Formulated to meet API GL-4 performance specifications, making it suitable for manual transmissions with synchronizers and moderate extreme pressure conditions
SAE 90 Viscosity Grade: Single-grade viscosity formulation (SAE 90) optimized for manual transmission applications requiring this specific viscosity classification
Good Thermal Stability: Provides resistance to thermal breakdown and oxidation at elevated operating temperatures, helping prevent deposit formation and oil thickening to extend fluid and transmission life
Anti-Wear Protection: Contains effective anti-wear additives that protect gear teeth, bearings, and synchronizers from premature wear and surface fatigue under normal operating loads
Load-Carrying Capacity: Formulated to handle moderate extreme pressure conditions, maintaining protective film strength between mating gear surfaces during high-speed/low-torque and low-speed/high-torque operation
Corrosion and Rust Prevention: Advanced additive package protects internal transmission components against rust and corrosion, even in the presence of moisture
Seal Compatibility: Compatible with conventional automotive gasket and seal materials, helping minimize leaks and prevent fluid contamination
Synchronizer Protection: Specifically formulated for manual transmissions with synchronizers, with appropriate friction characteristics and additive chemistry that protects synchronizer components from wear
Application Versatility: Suitable for passenger cars, light commercial vehicles, trucks, and buses with manual transmissions specifying API GL-4 90 grade fluids; also appropriate for certain transaxles and transfer cases
Technical Specifications: Density at 15°C: 0.895 g/ml | Kinematic Viscosity at 40°C: 187 mm²/s | Kinematic Viscosity at 100°C: 16.9 mm²/s | Viscosity Index: 96 | Pour Point: -6°C | Flash Point (COC): 282°C | Complies with ASTM D445, D2270, D97, D92 test methods
