ZF LifeGuard Fluid 8 Gear Oil 1L — S671.090.312 OE-Quality, Alkylacetamide Friction Additive

ZF S671.090.312 is a 1-litre pack of ZF LifeGuard Fluid 8 gear oil engineered to meet OEM specifications for smooth, reliable transmission and axle performance.

This ZF-branded gear oil (LifeGuard Fluid 8) is offered as a brand-new, OE-quality replacement part intended for use where the ZF specification is required. The formulation includes alkylacetamide and calcium sulfonate chemistries to provide the lubrication and protection characteristics ZF expects from its modern automatic-transmission and axle fluids. Purchase genuine, new parts to avoid premature failure commonly seen with used or counterfeit products.

What makes ZF LifeGuard Fluid 8 suitable for my transmission?

LifeGuard Fluid 8 is a factory-specified fluid designed to deliver the frictional and thermal properties required by many ZF transmissions. It balances smooth shift performance with component protection across a range of operating temperatures without the additives used in other fluid families.

• ZF-specified formulation for compatible ZF transmissions and axles
• Contains alkylacetamide friction modifiers for consistent shift feel
• Calcium sulfonate additives for wear and corrosion protection
• Sold as a new, 1-litre OE-quality unit for precise top-ups and service

How should I use this 1-litre bottle during service?

This 1-litre container is ideal for topping up or completing fluid changes where small volumes are needed. Always follow the vehicle manufacturer’s service manual for fill volumes, change intervals, and specified fluid type to ensure correct application.

• Use for partial top-ups, small-capacity transmissions, or as part of a larger service kit
• Refer to the vehicle’s technical manual for exact fill quantities and procedures
• Do not mix with non-specified fluids unless manufacturer permits
• Replace caps and seals immediately after use to avoid contamination

Are there any safety or regulatory cautions I should know?

Handle the fluid with standard workshop precautions: avoid prolonged skin contact, do not ingest, and store away from heat sources. This product contains chemicals including alkylacetamide and calcium sulfonate; consult the Safety Data Sheet (SDS) and local regulations for proper disposal and spill response.

• Contains components that may cause allergic reactions in sensitive individuals
• Complies with ZF specifications but has a California Proposition 65 warning for certain chemicals
• Use gloves and eye protection when servicing to minimize exposure
• Dispose of used fluid through an approved recycling or hazardous-waste program

How can I tell this is a genuine ZF part and not a counterfeit?

Buy from reputable dealers and inspect packaging, part numbers, and labeling; genuine ZF products are new, correctly labeled, and often include OE-quality markings. Counterfeit or used fluids can fail quickly and risk component damage or warranty issues.

• Packaging should be intact with the correct ZF part number S671.090.312 and LifeGuard Fluid 8 labeling
• Look for consistent printing, security labels, or dealer documentation where available
• Be wary of unusually low prices or used/recapped containers
• Purchase from authorized ZF distributors or verified sellers to ensure authenticity

Who is this for: Technicians, fleet managers, and DIY enthusiasts who service ZF-equipped transmissions and axles and need a genuine, specification-compliant 1-litre supply of ZF LifeGuard Fluid 8. Choose this OE-quality unit when the vehicle manufacturer specifies ZF LifeGuard Fluid 8 or part number S671.090.312, and follow service instructions and safety guidance for best results.