Castrol Classic D 140 Gear Oil – 1 Litre: Authentic Protection for Vintage Gearboxes (API GL-3)

Preserve the integrity and smooth operation of your classic vehicle’s transmission with Castrol Classic D 140 Gear Oil. This high-viscosity, mono-grade “straight” gear oil is expertly formulated from high-quality mineral oils, incorporating essential anti-oxidant and anti-wear additives. It provides crucial protection against wear for gear teeth in gearboxes and axles, making it an ideal choice for a wide range of vintage applications.

Key Features & Benefits:

• Optimized for Vintage Systems (API GL-3): Specifically designed to meet the lubrication requirements of older gearboxes, providing the correct level of protection without excessive EP additives that can harm sensitive components.

• Superior Wear Protection: Contains anti-oxidant and anti-wear additives that safeguard gear teeth from wear, extending the lifespan of critical transmission components.

• Yellow Metal Compatibility: Formulated for safe use with sensitive “yellow metals” such as brass and bronze, commonly found in classic vehicle transmissions, preventing corrosion and damage.

• Broad Gear Type Suitability: Recommended for helical, spur, bevel, and worm gears.

• Authentic Specification Adherence: The ideal choice where “Castrol D” was originally specified, ensuring your vehicle operates according to its original design.

• Trusted Heritage & Expertise: Backed by over a century of Castrol’s unparalleled experience in developing transmission fluids, this product is part of a range trusted by manufacturers for factory-fill and essential for maintaining vintage vehicle specifications.

• Ideal for Worn Components: Its formulation is particularly beneficial for older vehicles where some previous wear may have occurred, helping to minimize further degradation.

• Maintain Original Recommendations: Allows classic vehicle owners to faithfully follow the manufacturer’s original handbook recommendations, ensuring the continued authenticity and performance of their cherished automobile