Best Manual Transmission Fluids of 2025

The Genuine Honda Fluid 08798-9031 Manual Transmission Fluid is a high-quality product that comes in a 1 Quart package with dimensions of 6.858 L x 22.352 H x 10.922 W (centimeters). The fluid has a new and improved formula that meets quality standards and is designed to improve shift quality and lower fluid friction. It is an ideal choice for those looking for a reliable transmission fluid.

This transmission fluid offers enhanced performance in low and high temperatures, and helps reduce oxidation to control viscosity breakdown. It also provides excellent wear protection under high loads and extreme pressure, as well as outstanding anti-foam performance to minimize cavitation.

IMC Motorcom Trans Fluid is a versatile product suitable for various vehicle models. Before purchasing, ensure it fits your vehicle. It is crafted to meet or surpass the original part standards. The manual transmission fluid ensures smooth gear shifts and optimal performance, enhancing your driving experience with reliability and efficiency.

The Triax Synergy Gear MT-90 is a high-quality full synthetic manual transmission fluid that offers exceptional performance and reliability. Compatible with a wide range of manual transmissions from various car brands, this fluid is designed to provide smooth shifting and prevent issues like sticking, slipping, and vibration. Its frictionally optimized formulation ensures smooth synchronizer engagement and stable friction, resulting in a seamless driving experience. The Triax MT-90 is also yellow metal safe, making it suitable for use with brass, copper, and aluminum alloys. Additionally, it offers excellent gear protection in high horsepower and high-speed conditions, making it ideal for racing and off-road use. With its long drain intervals and low pour point, the Triax MT-90 is a reliable choice for any manual transmission.

The Red Line (50204) SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant is a high-performance gear oil that offers balanced friction control for most manual transmission synchronizers. This gear oil has the ability to satisfy the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 30, 10W30, 5W30, which leads to longer synchro life and quicker shifts. It is safe for brass synchros and does not damage them. It is popular for use in BMW, Honda/Acura, Ford Focus, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 & NV5600 truck transmissions. Red Line Products have been established since 1979 and are known for their high quality and performance.

This transmission fluid is manufactured with synthetic base oils and performance additives, providing improved gear shifting at all ambient temperatures. Due to its excellent thermal, oxidative, and shear stability, it meets Ford's fill-for-life requirements. Its wear protection extends the life of synchronizers and bearings, while reducing friction and providing optimal lubrication that reduces operating temperatures, increases component life, and improves efficiency. Use according to the owner's guide recommendations.

Ultra1Plus Synthetic Transmission Fluid is designed for heavy-duty use, providing exceptional protection against rust, oxidation, and corrosion in extreme conditions. This fluid enhances the longevity of your equipment by minimizing wear on gears and bearings, thanks to its anti-wear additives. You can rely on its all-climate performance, as it maintains superior viscosity in both hot and cold weather, ensuring optimal operation year-round. Additionally, it improves fuel efficiency by enabling smoother gear shifts and reducing fluid resistance, making it easier for you to handle challenging driving conditions.

The Valvoline Synchromesh Fluid comes in a convenient pack of six quarts, perfect for multiple oil changes or sharing with friends. This fluid is specially designed for manual transmissions, ensuring your vehicle runs smoothly and efficiently. The easy-to-pour bottles make it simple to change your transmission fluid without any mess. Formulated for modern vehicles, it helps prolong the life of your transmission while reducing wear, giving you peace of mind on the road.

The ACDelco Manual Transmission Fluid is designed specifically as a replacement for your GM vehicle's original factory component. This ensures that you receive the same quality and reliability that you expect from your car. The fluid is manufactured to meet GM's Original Equipment specifications, guaranteeing a perfect fit and function. By using this fluid, you can expect enhanced durability, which helps prolong the life of your transmission and improve overall vehicle performance. Choosing this product means you're investing in the longevity and efficiency of your transmission system.

The GM Synchromesh Fluid is a semi-synthetic transmission fluid designed to enhance the performance of your vehicle's NV 1500 transmission. Its friction-modified formula helps to minimize wear on transmission components, ensuring smoother operation. By using this fluid, you can expect improved shifting and longevity of your transmission, ultimately leading to a more reliable driving experience. Always refer to your service manual to confirm compatibility with your vehicle, making maintenance easier and more efficient for you.