Purpose and Specifications

RAVENOL ATF SU5 Fluid 4L is a premium synthetic automatic transmission fluid designed specifically for five-speed automatic transmissions in Subaru vehicles. It meets Subaru 4ATF, 5ATF, and ATF HP specifications, ensuring smooth shifting, maximum wear protection, and reliable performance in all driving conditions.

This red-colored fluid excels in cold weather, staying fluid down to -54°C for easy winter starts without transmission hesitation. It provides excellent cooling to handle operating temperatures up to 120°C, prevents foaming and corrosion, and maintains stable thickness whether you're cruising highways or tackling tough terrain.

• Perfect for Subaru models with 5-speed automatics like Legacy, Forester, and Outback
• High wear protection extends transmission life
• Superior lubrication reduces friction for smoother gear changes
• 4-liter container ideal for complete fluid changes

When to Use / Replace?

Use RAVENOL ATF SU5 Fluid during routine maintenance or if your Subaru transmission shows slipping, harsh shifts, or delayed engagement. Replace every 60,000-100,000 km or 4-5 years under normal driving; more frequently (every 40,000 km) for heavy towing, off-road use, or extreme climates.

Shelf life is 5 years when stored in a cool, dry place. Always check your vehicle's VIN with a Subaru dealer to confirm compatibility and avoid transmission damage from incorrect fluid.

FAQ

Is this fluid safe for my Subaru's 5-speed automatic?
Yes, it's specially formulated to match Subaru 4ATF, 5ATF, and ATF HP standards for perfect fit and long-term protection.

How often should I change the ATF in my Subaru?
Every 60,000-100,000 km for regular driving, or sooner if towing or in harsh conditions, to keep shifts smooth and prevent costly repairs.

Will it work in cold winters?
Absolutely, it flows smoothly at -54°C, ensuring reliable starts and no cold-shift issues even in freezing temps.