LIQUI MOLY LQM20538 Synthetic Gear Oil 1L GL4/GL5 75W90

( Brand: Liqui Moly ), ( Manufacturer Part Number: LQM20538 ), ( Part Type: Oil Gear Case ), ( Air Freight Prohibited: True ), ( Not Carb Approved: False )

Review LIQUI MOLY 1l Fully Synthetic Gear Oil Gl4/gl5 Sae 75w90 Case Of fits MARINE

Liqui Moly LQM20538 1L Marine Synthetic Gear Oil GL4/GL5 75w90

The Liqui Moly LQM20538 Marine Synthetic Gear Oil is a high-performance lubricant specifically designed for use in marine applications. This premium oil, with a volume of 1 liter, conforms to the stringent requirements of the gear oil specifications GL4 and GL5, as well as the viscosity grade 75w90.

This marine synthetic gear oil from Liqui Moly is engineered with advanced technology to provide exceptional protection for marine gearboxes, even in the most demanding conditions. Its synthetic base ensures superior resistance to wear, corrosion, and oxidation, ensuring a longer lifespan for your marine equipment.

One of the standout features of this Liqui Moly oil is its high viscosity index, which maintains its fluidity in various temperatures. This is crucial for marine applications, as gearboxes are often exposed to extreme temperature fluctuations. The 75w90 viscosity grade ensures adequate lubrication during engine start-up in cold conditions and efficient heat dissipation during operation in high temperatures.

The Liqui Moly LQM20538 Marine Synthetic Gear Oil is also formulated with special additives to protect against foaming, which can negatively impact the performance of your marine gearbox. This oil's excellent anti-foaming properties ensure that your equipment operates smoothly, even under heavy loads.

With its high-quality synthetic formulation, excellent viscosity properties, and robust additive package, the Liqui Moly LQM20538 Marine Synthetic Gear Oil is the perfect choice for maintaining the optimal performance and longevity of your marine gearbox. Whether you're an avid boater or a commercial maritime operator, this premium oil will help keep your equipment running at its best.

Pros and Cons of Buying Liqui Moly LQM20538 1L Marine Synthetic Gear Oil (GL4/GL5 75w90)

Liqui Moly LQM20538 is a marine synthetic gear oil specifically designed for gearboxes and manual transmissions in outboard motors and inboard engines. It is a GL4/GL5 certified oil with a viscosity of 75w90.

a. High-quality synthetic formula: This oil provides excellent protection against wear and corrosion, ensuring longer engine life.

b. Wide temperature range: The 75w90 viscosity allows for good flow in cold conditions and sufficient protection in high-temperature environments.

c. Compatibility: It is suitable for various marine applications, including outboard motors, inboard engines, and stern drives.

a. Premium price: Compared to conventional gear oils, Liqui Moly LQM20538 may be more expensive, which could be a concern for budget-conscious boat owners.

b. Limited availability: While widely available in motorboat shops and online, it may not be as readily accessible as other brands in smaller marine supply stores.

Liqui Moly LQM20538 1L Marine Synthetic Gear Oil is an excellent choice for boat owners looking for high-quality, long-lasting protection for their gearboxes and manual transmissions. Its synthetic formula, wide temperature range compatibility, and versatility make it a worthwhile investment for marine applications. However, its premium price and limited availability might be a concern for some.

If your budget allows and you value the benefits of a high-quality synthetic gear oil, Liqui Moly LQM20538 is a solid recommendation for your marine engine. Regularly using this oil in your gearbox or manual transmission will contribute to its longevity and overall performance.

Details:

The LIQUI MOLY 1L Marine Fully Synthetic Gear Oil SAE 75W90 is engineered for demanding Marine transmission applications, providing reliable lubrication under extreme conditions. This high-performance gear oil is formulated with fully synthetic components to deliver exceptional viscosity and temperature stability, ensuring smooth transmission function during operation in fluctuating environmental conditions. Excellent viscosity/temperature stability for reliable operation in fluctuating conditions. Meets or exceeds major transmission manufacturer specifications GL4/GL5.

To ensure optimal results, users should follow the manufacturers instructions for vessel and transmission maintenance. Its formulation is compatible with common sealing materials, preventing damage or degradation over time. Key features include excellent viscosity/temperature properties that maintain optimal lubrication across a wide temperature range, high-pressure absorption to protect transmission components under heavy loads, and formulation does not attack common sealing materials. High pressure-absorption capability to minimize wear and extend transmission life.

Designed to offer excellent pressure-absorption capabilities, this gear oil minimizes wear on transmission components, extending service life and ensuring reliable operation. Compatible with common sealing materials to prevent leaks and damage.

part #: lqm20538 price

• $162.38

specifications motoralph:

• for models: Marine
• brand: Liqui Moly
• mpn: Lqm20538
• part type: Oil Gear Case
• air freight prohibited: True
• not carb approved: False

payments motoralph:

• wallet: Apple-pay
• other
• credit card: Visa

returns motoralph:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general motoralph:

• condition: New
• Motors > Parts Accessories > Other

offer motoralph:

• options: Ship-to-home
• quantity: 5
• availability: In Stock
• started: April 12, 2026
• sold: 0

seller motoralph:

• city: Tampa, Florida
• rating: 99.7%
• # reviews: 5663

shipping motoralph:

• carrier: UPS
• type: Fixed
• class: Expedited
• cost: $15.99
• service: UPS 3 Day Select, Expedited
• transit: 3-5 Days

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