Purpose and Specifications

Castrol Transmax ATF DX III Multivehicle is a semi-synthetic transmission oil designed for automatic transmissions in older GM vehicles before 2005 (Dexron II or III), Ford models from 1983-1996 (Mercon), and many European heavy-duty units. It delivers smooth gear shifts, resists heat buildup to prevent sludge and thickening, and protects gears across wide temperatures from -45°C cold starts to over 200°C operation.

This 1-liter bottle weighs about 0.9 kg and suits power steering in some vehicles too. Its high thermal stability means longer fluid life, often lasting 50,000-100,000 km or 3-5 years under normal driving, depending on conditions.

• Smooth shifting: Optimized friction reduces jerking for efficient power transfer.
• Wide temp protection: Stays fluid in freezing cold and thick in extreme heat.
• Proven approvals: Meets Allison TES-389, MAN 339 types, MB 236.9, ZF standards.

When to Use / Replace?

Use this oil in compatible older automatic transmissions for reliable performance and to avoid costly repairs. Replace every 50,000-80,000 km or 3 years, or sooner if towing heavy loads, frequent short trips, or temps exceed 100°C regularly. Shelf life is 3-5 years unopened in cool, dry storage.

Check your owner's manual for exact specs; ideal for fleet trucks, vans, and classics needing Dexron III or Mercon.

FAQ

Is this fully synthetic? No, it's semi-synthetic, balancing cost and high performance for everyday use.

Can it fix slipping gears? It promotes smooth shifts but replace if wear is advanced; fresh oil prevents worsening.

Compatible with my power steering? Yes, in many units, but confirm vehicle specs first.