Name: 75w80 Synthetic Gear / Diff Oil GL-4
Brand: Westway Oils
SKU: 7427248194583
Price: 14.99 GBP
Availability: InStock

75w80 Synthetic Gear / Diff Oil GL-4 - 4Boats

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£14.99

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75W80 Synthetic Gear & Diff Oil

Premium GL-4 Fully Synthetic Protection

This 75W80 Fully Synthetic Gear and Differential oil is a high-performance lubricant manufactured from a precision blend of synthetic base oils and a shear-stable viscosity index improver system. Designed for modern manual transmissions and high-performance axles, it offers superior protection against wear while ensuring smooth, precise gear shifts even in cold climates.

YELLOW METAL SAFE: Specifically formulated to be non-reactive to brass and copper components, making it ideal for gearboxes with synchronizers that are often damaged by standard GL-5 oils.

Key Features

✔ Improves "notchy" gear changes
✔ High resistance to rust and corrosion
✔ Excellent thermal and oxidation stability
✔ Fully compatible with mineral oils
✔ British Made High Performance

Technical Specs

Viscosity Grade	75W-80
API Service Class	GL-4
Viscosity @ 40°C	55.0 cSt
Viscosity @ 100°C	9.7 cSt
Viscosity Index	163
Flash Point	215°C
Pour Point	-30°C

Compatibility / Fitment Guide

Application	Model/Spec	Notes
Manual Gearboxes	75W80 API GL-4	Universal high-performance fitment
Marine Systems	Spiral Bevel / Hypoid Axles	Where GL-4 is specified
Automotive	BMW, Mini, Land Rover	Excellent replacement for "notchy" boxes

OEM Cross Reference

BMW MTF-LT-2	GM 12345349 (Synchromesh)
Chrysler MS-9224	Land Rover MTF94 Equivalent
Honda MTF-7289	Volvo 97308 / 97309

Questions & Answers

Is this a genuine original part?

This is a premium quality British-manufactured aftermarket gear oil, formulated to meet or exceed OEM performance specifications.

How do I know if it is compatible?

If your manual requires a 75W80 viscosity with an API GL-4 rating, this oil is a perfect match. It is particularly recommended if you are experiencing stiff or "notchy" gear changes.

Can I use this in a limited-slip differential (LSD)?

This is an API GL-4 fluid. For most modern limited-slip differentials, an API GL-5 fluid with friction modifiers is usually required unless your manufacturer specifically lists a GL-4 75W80.

Note: 4boats.co.uk recommends verifying your equipment manual for the correct viscosity and API rating before purchase.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

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75w80 Synthetic Gear / Diff Oil GL-4