Why Your NC MX-5 Needs GL-4 Transmission Fluid
Why Your NC MX-5 Needs GL-4 Transmission Fluid

For NC MX-5 owners, choosing the right transmission fluid is crucial for your vehicle's longevity and performance. Using GL-5 transmission fluid in your NC MX-5 gearbox can lead to significant problems. Discover why the proper fluid choice is essential and how it impacts your transmission's health. Learn more about optimal NC MX-5 maintenance today!

The Problem with GL-5 in NC MX-5 Transmissions
GL-5 transmission fluid contains phosphorus, which reacts negatively with the brass and bronze "yellow metals" found in your NC MX-5 gearbox. This reaction creates an ash-like sludge that contaminates the system. Over time, this buildup can severely impede critical components. Ensure your transmission's health by always using the correct GL-4 fluid.
How Contamination Affects Your NC MX-5's Oil Pump
Your NC MX-5's 6-speed transmission features an internal oil pump—a small plastic impeller designed to circulate fluid through the main shaft and lubricate gear journals. When the system is compromised by GL-5's damaging ash, this vital oiling process is disrupted. Protect your NC MX-5 by understanding the importance of proper fluid.
The Importance of Choosing GL-4 for Your NC MX-5
To safeguard your NC MX-5 gearbox, always use a high-quality GL-4 transmission fluid. Unlike GL-5, GL-4 is specifically formulated to be non-corrosive to the "yellow metals" within your transmission, preventing harmful sludge buildup. Make the right choice for your NC MX-5; find a reliable GL-4 fluid today.
Our Recommendation for Your NC MX-5 Transmission
We are actively developing a custom-blended transmission fluid specifically for the NC MX-5, showing promising results. While our blend is in development, we highly recommend Ford's synthetic manual transmission fluid for its compatibility and protective qualities. Contact us for expert advice on your NC MX-5 maintenance needs.