Quicksilver V-Twin Primary & Transmission Fluid, 1 Quart — Shear-Stable GL-4 for Wet Clutch

Quicksilver 8M0175742 is a 1-quart, shear-stable fluid formulated specifically for high-performance V-twin motorcycle primary chaincases and transmissions with wet diaphragm spring clutches.

Built for V-twin drivetrains, this primary and transmission fluid helps maintain reliable clutch engagement, smoother gear changes and long-lasting wear protection. The formula meets API GL-4 specifications and includes additives to resist shear and protect internal components under the heavy loads common to V-twin engines. Packaged in a convenient 1-quart bottle, it suits routine maintenance and top-offs without excess waste.

How does this fluid affect clutch engagement and shifting?

The specialized additive package is balanced for wet diaphragm spring clutches so the fluid supports predictable clutch feel and consistent engagement. Riders will notice crisper shifts and reduced chatter when the fluid is properly maintained and changed at recommended intervals.

• Formulated for wet clutch compatibility to preserve engagement characteristics
• Promotes smoother, more consistent shifting under load
• Helps reduce clutch slipping and chatter when used as directed

What protection does it provide for gears and chaincases?

This Quicksilver fluid uses wear-reducing additives and a shear-stable base to protect gears, bearings and primary chain components from metal-to-metal wear. The shear stability helps the oil retain its protective film under high torque and sustained pressure.

• Outstanding wear protection for transmissions and chaincases
• Shear-stable formula extends chain and gear life under heavy loads
• API GL-4 performance level for reliable gear surface protection

Which motorcycles and service situations is it intended for?

Designed specifically for V-twin motorcycles with wet diaphragm spring clutches, this fluid is suitable for both stock and modified bikes where manufacturer recommends GL-4 fluids. Always check your owner's or service manual for model-specific capacity and change intervals.

• Suitable for all V-twin primary chaincases and transmissions calling for GL-4
• Appropriate for routine drain-and-fill maintenance and top-ups
• Meets or exceeds many manufacturer warranty requirements when used per instructions

How should I use and store the 1-quart bottle?

The 1-quart packaging is sized for easy handling and storage; measure and pour carefully, following your service manual's capacity and fill procedure. Keep the bottle sealed and stored in a cool, dry place away from direct sunlight and contamination.

• Refer to the owner’s/service manual for capacities and fill method
• Use a clean funnel or pump to avoid contaminating the fluid
• Store sealed bottle upright in a cool, dry environment

Who is this for? Quicksilver 8M0175742 is aimed at riders and technicians who maintain V-twin motorcycles with wet diaphragm spring clutches and who need a GL-4-rated, shear-stable fluid for dependable clutch feel and long-term wear protection. It's a practical choice for owners performing scheduled service, shop professionals working on V-twin drivetrains, and enthusiasts upgrading fluids to preserve shifting performance under real-world riding conditions.