Purpose and Specifications

Castrol Syntrans Transaxle 75W-90 is a full synthetic transmission oil built for manual transaxles, gearboxes, and transfer cases needing API GL-4 protection. It delivers superior wear protection that extends transmission life, smooth gear shifts even in cold weather down to -20°C, and stays stable up to 150°C for cleaner operation and longer performance.

• Perfect for VW-approved systems (VW 501.50) and transaxle drives with heavy loads
• Reduces operating temperatures to cut wear and boost fuel efficiency
• 1L bottle covers most drain-and-fill services, lasting up to 100,000 km or 3 years under normal driving

When to Use / Replace?

Use this oil in manual transmissions for crisp shifting at startup and high-mileage reliability. Replace every 60,000-100,000 km or every 24-36 months, or sooner if towing heavy loads or driving in extreme heat over 40°C. Shelf life is 5 years unopened when stored cool and dry.