ZF Lifeguardfluid 6 automatic transmission fluid — 6 L container, synthetic for ZF/BMW gearboxes, high-temp stability

ZF Lifeguardfluid 6 is a fully synthetic, heavy-duty automatic transmission fluid formulated by ZF to protect and optimize ZF automatic transmissions and meet BMW OE specifications.

Designed specifically for modern ZF automatic gearboxes, Lifeguardfluid 6 delivers stable lubrication, temperature resistance and friction characteristics intended for smooth shifting and extended component life. This listing is for a 6-liter container (ZF PARTS S671-090-255) that corresponds to BMW OE# 83 22 2 220 445. Note: this product carries a California Proposition 65 warning for exposure to certain chemicals; handle and store it per local regulations and avoid prolonged skin contact.

What makes Lifeguardfluid 6 suitable for ZF transmissions?

ZF engineered this fluid to match the hydraulic, friction and thermal requirements of its automatic transmissions. The synthetic base and additive package maintain viscosity under load and support consistent shift quality across temperature ranges.

• Formulated specifically for ZF automatic gearboxes
• High thermal and oxidative stability for long service intervals
• Consistent friction performance to protect clutch packs and valve bodies
• Compatible with systems requiring BMW OE# 83 22 2 220 445

How does this fluid affect shifting performance and component wear?

Lifeguardfluid 6 provides controlled frictional behavior to ensure smooth, precise shifts while minimizing micro-slip that accelerates wear. Its lubricity reduces metal-to-metal contact, supporting longer life for clutches, seals and bearings.

• Smooth, predictable upshifts and downshifts
• Reduced clutch pack wear through stable friction coefficients
• Improved seal protection to help prevent leaks
• Resistant to viscosity breakdown under heat and pressure

When should I use or replace Lifeguardfluid 6 in my vehicle?

Follow your vehicle manufacturer’s maintenance schedule for fluid change intervals. Use this fluid when the gearbox manufacturer specifies ZF Lifeguardfluid 6 or the equivalent BMW OE number; consider replacement during major services or if contamination or degraded fluid is detected.

• Install when OEM specifies Lifeguardfluid 6 or BMW OE# 83 22 2 220 445
• Replace at manufacturer-recommended service intervals or when contaminated
• Always inspect seals, filters and fill procedures during service
• Use correct fill volume and follow gearbox bleeding/fill instructions

Are there handling, compatibility, or safety considerations?

Use proper PPE when handling transmission fluid—gloves and eye protection—avoid skin contact and dispose of used fluid responsibly. Verify compatibility with your transmission model and do not mix with fluids of unknown specification without confirming manufacturer guidance.

• Wear gloves and eye protection when handling the product
• Observe local rules for used fluid collection and recycling
• Do not mix with incompatible fluids unless OEM permits blending
• Contains chemicals covered by California Proposition 65—store safely

Who is this for: Technicians, fleet managers and DIY car owners who maintain ZF-equipped vehicles and require the OEM-recommended Lifeguardfluid 6 formulation. This 6-liter supply suits single-service fills on many passenger cars and light commercial vehicles, or as a replenishment option for shops that service ZF transmissions. Choose this item if you need a genuine ZF PARTS fluid (S671-090-255) that aligns with BMW OE# 83 22 2 220 445 and want a synthetic fluid engineered for stable shifts and component protection.

Product features:

• Brand New ZF PARTS Lifeguardfluid 6, 6 Piece Set
• BMW OE#: 83 22 2 220 445
• ZF PARTS #: S671-090-255