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Demon Tweeks£16.03Visit shop Millers Oils CRX NT+ Nanodrive 75W Synthetic Gear Oil - 1 Litre
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This guide is for owners of high-performance road cars and competition vehicles requiring a GL-4 specification gear oil. Millers Oils CRX NT+ Nanodrive 75W offers superior wear reduction and friction minimization thanks to its advanced Nanodrive technology, leading to increased component protection and reduced power loss. A key consideration is that it is specifically for GL-4 applications and not suitable for systems requiring GL-5 or those with plate-type LSDs.
| Model Part Number | 8311JMP |
|---|---|
| Brand | Millers Oils |
GL-4 is an API (American Petroleum Institute) service classification for gear lubricants. It indicates a specific level of extreme pressure (EP) performance suitable for manual transmissions and some other applications, differing from the higher EP requirements of GL-5, which is often used in hypoid differentials.
No, it is not recommended. GL-5 oils contain higher levels of extreme pressure additives which can be corrosive to the yellow metals (like brass or bronze) often found in manual transmission synchronizer rings, which are designed for GL-4 oil.
Nanodrive technology uses extremely small, spherical nanoparticle structures within the oil. These particles act like microscopic ball bearings, filling surface imperfections and reducing friction and wear, especially under high pressure, without compromising the oil's viscosity.
Refer to your vehicle manufacturer's service schedule. High-performance or competition use may necessitate more frequent changes than standard road use.
CRX NT+ is suitable for hypoid differentials without plate-type LSDs. If your vehicle has a plate-type LSD, you will typically need a specific LSD-compatible oil, often with friction modifiers.
Fully synthetic gear oils offer superior thermal stability, better resistance to oxidation, improved low-temperature performance (better flow), and often longer service intervals compared to conventional mineral-based oils.
While CRX NT+ has excellent cold flow, ensure the correct oil level is maintained. If issues persist, verify the GL-4 specification is appropriate for your gearbox.
Double-check that the correct viscosity (75W) and specification (GL-4) have been used. Ensure the gearbox is filled to the correct level. Some new oil 'bedding-in' noise may occur initially.
Ensure all oil seals are in good condition before filling. CRX NT+ is synthetic and generally compatible with common seal materials, but always check for any known incompatibilities with your specific vehicle.
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