HKS G-1400 75W140 Gear Oil

2011–2025 Subaru Forester / Subaru Outback / Subaru Legacy 2.5L / 3.6L / 3.6L H6 / 2.0L Turbo / 2.4L Turbo

Part #: 52004-AK009

Overview

The HKS G-1400 75W140 Gear Oil is a high-performance, fully synthetic lubricant designed to provide exceptional protection and efficiency for your vehicle's drivetrain components. Whether you're a daily driver, a spirited enthusiast, or involved in high-power applications, this gear oil ensures your transmission and differential operate smoothly under demanding conditions.

Engineered with advanced synthetic technology, this gear oil offers superior load-carrying capacity, low friction, and excellent thermal stability. It is ideal for use in various gearboxes, differentials, and transfer cases, helping to support increased horsepower and torque while reducing wear and tear on critical components. With HKS's reputation for quality and innovation, this gear oil is a reliable choice for maintaining optimal drivetrain performance.

Key Features

The HKS G-1400 75W140 Gear Oil incorporates several advanced features to enhance your vehicle's drivetrain performance:

• 100% synthetic nonpolymer formulation ensures maximum lubrication efficiency and stability across a wide temperature range.
• High load capacity and strong load-carrying ability support demanding applications, including high-power and off-road driving.
• Low friction properties reduce drivetrain resistance, contributing to improved fuel economy and smoother shifting.
• Exceptional thermal stability prevents breakdown under high temperatures, extending service intervals and protecting gears from wear.
• Designed to meet or exceed OEM specifications for various vehicle makes and models, ensuring compatibility and reliable performance.
• Resists oxidation and corrosion, safeguarding your drivetrain components from rust and degradation over time.
• Suitable for use in both manual transmissions and differentials requiring 75W140 viscosity grade.
• Optimized for high-performance applications, including racing, towing, and spirited driving scenarios.
• Manufactured by HKS, a trusted name in automotive performance and lubrication technology.

Construction & Design

The HKS G-1400 75W140 Gear Oil is formulated with premium synthetic base oils and advanced additive packages. Its nonpolymer composition ensures consistent viscosity and performance, even under extreme conditions. The oil's formulation includes anti-wear agents, friction modifiers, and corrosion inhibitors, all working together to provide comprehensive protection for your drivetrain components.

The oil's high-quality base oils and additives are engineered to reduce metal-to-metal contact, minimize heat buildup, and prevent sludge formation. This results in quieter operation, smoother gear engagement, and extended component lifespan. The formulation is designed to withstand the rigors of high-stress environments, making it suitable for both everyday driving and high-performance applications.

Installation & Fitment

Installing the HKS G-1400 75W140 Gear Oil is straightforward and similar to other high-quality gear lubricants. It is compatible with most manual transmissions, differentials, and transfer cases that specify a 75W140 viscosity grade. No special tools or procedures are required beyond standard drain and fill operations. Always refer to your vehicle's service manual for specific fill quantities and procedures.

Ensure the old gear oil is fully drained before refilling with this synthetic lubricant to maximize performance benefits. Regular maintenance intervals are recommended to keep your drivetrain operating at peak efficiency.

What's Included

• One liter (1L) bottle of HKS G-1400 75W140 Gear Oil

Ideal For

• High-performance street and racing applications
• Vehicles requiring 75W140 gear oil for manual transmissions or differentials
• Enthusiasts seeking maximum protection and efficiency in demanding conditions
• Off-road vehicles subjected to heavy loads and high temperatures