Penrite Gear Box Oil 40 Manual Transmission 1L GB40001

Description

At first, Penrite Gear Box Oil 40 Manual Transmission 1L (GB40001) is a premium mineral-based lubricant designed for manual transmissions, gearboxes, as well as overdrives that require a straight mineral oil without aggressive extreme pressure (EP) additives. It is particularly suited to vintage, classic, and heritage vehicles where softer metals such as brass, bronze, and copper are present, and where modern EP oils may cause damage.

Product Overview

• Product Code: GB40001
• Viscosity Grade: SAE 40
• Type: Non-EP mineral gear oil
• Pack Size: 1 Litre bottle
• Formulation: High-quality mineral oil with rust and oxidation inhibitors

As an illustration, this oil is formulated to provide smooth gear operation and reliable protection without the risk of chemical attack on yellow metals, making it ideal for older gearboxes and transmissions that require heavier viscosity compared to SAE 30 oils.

Key Benefits

• Safe for soft metals: Compatible with brass, bronze, and copper components often found in vintage gearboxes.
• Heavier viscosity: Provides stronger film strength for higher load conditions compared to lighter grades.
• Smooth operation: Reduces gear noise and improves the feel of manual transmission operation.
• Oxidation stability: Resists breakdown, ensuring longer service life.
• Corrosion protection: Guards against rust and oxidation in older mechanical systems.
• Leakage resistance: Maintains viscosity to reduce seepage in worn or aged gearboxes.

Applications

Penrite Gear Box Oil 40 is widely used in:

• Manual transmissions in vintage and classic cars requiring SAE 40 mineral oils.
• Overdrives and gearboxes where non-EP oils are specified.
• Differentials and gear sets designed for straight mineral oils.
• Agricultural and industrial equipment that call for SAE 40 mineral oils.
• Heritage vehicles where modern GL-5 EP oils may be too aggressive.

It is particularly recommended for older British and European cars, including marques such as MG, Triumph, Austin, and Jaguar, where manufacturers specified heavier mineral oils for gearboxes and overdrives.

Why Choose GB40001?

• Specialist formulation: Tailored for heritage and classic applications.
• Trusted brand: Penrite is famous for producing lubricants that respect vintage engineering.
• Convenient size: 1L bottle is ideal for topping up or small gearbox fills.
• Balanced performance: Provides reliable lubrication without compromising component integrity.

Conclusion

In conclusion, Penrite Gear Box Oil 40 Manual Transmission 1L GB40001 is the ideal choice for enthusiasts and professionals maintaining classic vehicles or machinery that requires non-EP mineral oils with heavier viscosity. Its compatibility with yellow metals, stable film strength, and protective qualities ensure smooth operation and long-term reliability. Whether used in vintage manual transmissions, overdrives, or gearboxes, this product delivers dependable performance while preserving the integrity of older mechanical designs.