Morris Lubricants AG250 Classic Gear Oil - 2 x 1L
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Full details
This Morris Lubricants AG250 Classic Gear Oil is designed for owners of classic and vintage vehicles, including cars, motorcycles, tractors, and commercial vehicles, who require a non-EP (Extreme Pressure) lubricant for their manual gearboxes and transmissions. Its key benefit is providing reliable lubrication and component protection without the harshness of EP additives, making it safe for sensitive materials like phosphor-bronze. A caveat is its specific application for non-EP specified equipment; it is not suitable for modern transmissions requiring EP performance.
All features
| Model Part Number | AG250 |
|---|---|
| Brand | Morris Lubricants |
Extended Product Information
FAQs
What does 'non-EP' mean for gear oil?
'Non-EP' means the oil does not contain Extreme Pressure additives. These additives are common in modern gear oils but can be detrimental to older gearboxes and components made from materials like bronze or brass.
Is AG250 suitable for my modern car's manual gearbox?
No, AG250 is specifically designed for classic and vintage vehicles that require non-EP lubricants (API GL1). Modern gearboxes typically require API GL4 or GL5 EP lubricants.
Can I use this oil in my differential?
You can use AG250 in differentials that specifically state non-EP lubricant requirements and are not limited-slip differentials. Always consult your vehicle's service manual.
How often should I change this gear oil?
The frequency depends on the vehicle's usage and manufacturer recommendations. For classic vehicles, changing it every few years or based on mileage (e.g., every 10,000-20,000 miles) is a common practice, but always refer to your specific service manual.
What is the API GL1 performance level?
API GL1 denotes lubricants intended for manual transmissions, axles, and worm gear drives operating under light conditions. They contain no EP additives and are generally based on mineral oils.
Why is it safe for phosphor-bronze components?
EP additives in other gear oils can react with copper-based alloys like phosphor-bronze, causing corrosion and degradation. AG250's lack of these additives prevents such reactions, protecting these sensitive parts.
Troubleshooting
Gear grinding or difficult shifting
Verify that the correct oil viscosity and type (non-EP) have been used. Check for any internal mechanical issues within the gearbox.
Oil leaks from seals or gaskets
Check the condition of seals and gaskets. While the oil itself is unlikely to cause leaks, old or hardened seals may begin to weep. Ensure the correct fill level is maintained.
Excessive noise from gearbox
Excessive noise can indicate wear. Ensure the AG250 is suitable for the application and that the gearbox is functioning correctly. Noise may persist if there is existing wear.
Oil appears foamy
Although AG250 has anti-foam properties, persistent foaming could indicate excessive churning or air ingress. Check for air leaks or overfilling.
Pros and Cons
Pros
- Specifically formulated for classic and vintage vehicle transmissions.
- Protects sensitive components like phosphor-bronze.
- Provides good lubrication without harsh EP additives.
- Offers excellent long-term stability and anti-foam properties.
- Meets API GL1 performance standards.
Cons
- Not suitable for modern vehicles requiring EP lubricants.
- Limited to applications where non-EP oil is specified.
- May not offer the same high-load protection as EP gear oils.
Setup, Compatibility & Care
Setup: Ensure the gearbox or transmission system is clean and free from old lubricant residue before filling. Refer to the vehicle's service manual for the correct oil capacity. Use a suitable funnel or pump to fill the component to the recommended level, typically to the bottom of the filler plug hole.
Compatibility: This oil is compatible with manual gearboxes, axles, worm gear drives, oil-lubricated bearings, reduction gears, hubs, chains, steering boxes, and king-pins that specifically require a non-EP lubricant (API GL1). It is safe for use with phosphor-bronze components. Do not use in modern transmissions that specify EP (API GL4 or GL5) or other specialized lubricants.
Care: Store the oil in its original container in a cool, dry place, away from direct sunlight and extreme temperatures. Regularly check fluid levels as per your vehicle's maintenance schedule. When changing the oil, dispose of the old lubricant responsibly according to local environmental regulations.