Liqui Moly Marine Gear Oil 80W-90 GL4 GL5 MT-1 20L 25034

Liqui Moly Marine Gear Oil 80W-90 GL4 GL5 MT-1 20L 25034

OIL-LIQUIMOLY-GEAROIL-20L

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 4 items left
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.

Regular price£232.92
/
Tax included.

LIQUI MOLY Marine Gear Oil GL4/GL5 80W-90 is a mineral-based high-performance lubricant for marine transmissions operating under normal to high loads. Its additive package helps minimise wear and running noise while providing corrosion protection and resistance to ageing.

Key Features

  • Marine transmission oil for outboard, inboard and sterndrive applications
  • SAE 80W-90 viscosity grade
  • Meets API GL-4, GL-5 and MT-1 performance requirements
  • High pressure-absorption capability
  • Helps reduce wear and gear noise
  • Large 20-litre workshop container

Technical Specs

Brand LIQUI MOLY
Product Marine Gear Oil GL4/GL5
Viscosity SAE 80W-90
Performance API GL-4 / GL-5 / MT-1
Base Mineral-based selected base oils
Contents 20 litres

Compatibility / Fitment Guide

For marine gearboxes, outboard lower units, inboard transmissions and Z-drives that specifically require SAE 80W-90 oil meeting the stated API performance level. Do not select oil by engine brand alone; check the drive or gearbox manual because some units require a different viscosity, formulation or manufacturer-approved lubricant.

Part Number Cross Reference

  • LIQUI MOLY article number: 25034
  • 4Boats SKU: OIL-LIQUIMOLY-GEAROIL-20L
  • Specification reference: SAE 80W-90, API GL-4 / GL-5 / MT-1

Frequently Asked Questions

Can this be used in any outboard lower unit?

No. Use it only when the manufacturer specifies a compatible SAE 80W-90 GL-4/GL-5 oil.

Is this the 75W-90 fully synthetic product?

No. This listing is for the mineral-based SAE 80W-90 product.

How much oil is supplied?

One 20-litre container is supplied. Check the drive capacity and filling procedure before service.

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

Free delivery for most items over £150.

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