Best 75w140 Synthetic Gear Oil: image
Best Overall

For limited slip differentials and non-synchronized manual transmissions. SynPower Gear Oil is specially formulated to provide outstanding thermal stability and longer service life. It contains no additives or additives that could affect the performance of the gear, according to reports. The product is also compatible with conventional gear oils. Notably, it has been tested in extreme temperatures up to 250°C. The product is available in three different grades: high temperature, low temperature and medium temperature.

Best Value

Vehicle Specific Lucas 75/140 Synthetic Gear Oil is a super-slick, long lasting lubricant designed especially for heavy duty or high performance applications. The oil has a low friction coefficient and can be used in limited slip differentials. It contains no harmful additives and does not cause any damage to the gearbox. It is also suitable for use in anti-lock brake systems. Notably, it was introduced in India in 2015.

Honorable Mention

Products, which are available in a variety of sizes and weights, will bring you years of reliable performance. These products have been designed to meet the demands of heavy-duty vehicle owners. The products are manufactured using high-quality raw materials and undergo stringent quality checks before being dispatched to your doorstep. They are also approved for use in commercial vehicles. Notably, these products were launched in 2015.

Best 75w140 Synthetic Gear Oil

Top 5 Best 75w140 Synthetic Gear Oil

1
Why we chose it
  • Super-slick long lasting lubricant
  • Specifically designed for heavy duty and high performance applications
  • Safely blends with other gear oils, petroleum, or synthetic
  • Stands up to high temperatures while maintaining lubricity
  • Insures less gear noise and longer bearing life
Lucas Oil 10121 Synthetic SAE 75W-140 Gear Oil, Red, 1 Quart (32 Ounces): image
96%
customers recommend this product
4.8/ 5
2

Mobil 1 102490 75W-140 Synthetic Gear Lube – 1 Quart

224 ratings | 20 offers | 224 Reviews
Price: $18.15$36.08
Why we chose it
  • Package width :8.89 cm
  • Made in United States
  • Package height :8.89 cm
  • Package length :28.956 cm
Mobil 1 102490 75W-140 Synthetic Gear Lube - 1 Quart: image
96%
customers recommend this product
4.8/ 5
Top Pick
3

Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT

1,722 ratings | 14 offers | 1,722 Reviews
Price: $15.99$36.6
Why we chose it
  • Helps provide outstanding thermal stability for cleanliness and longer service life
  • Recommended for conventional and limited slip differentials and non-synchronized manual transmissions where API GL-5 or API GL-4 fluid is specificed
  • Formulated to maintain excellent low temperature fluid protection
  • Contains special additives to assist in protecting gear teeth from rust and corrosion and reduce chattering in limited-slip differentials
Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT: image
96%
customers recommend this product
4.8/ 5
4

Lucas 10122 75/140 Synthetic Gear Oil – 1 Gallon

802 ratings | 27 offers | 802 Reviews
Price: $45.55$115.35
Why we chose it
  • Package Weight: 3.447 kilograms
  • Country of Origin : China
  • Package Dimensions: 30.48 H x 16.51 L x 16.51 W (centimetres)
  • Fit type: Vehicle Specific
Lucas 10122 75/140 Synthetic Gear Oil - 1 Gallon: image
96%
customers recommend this product
4.8/ 5
Value for money4.9
Easy to use4.9
5

ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE

576 ratings | 27 offers | 576 Reviews
Price: $15.99$38.73
Why we chose it
  • For best performance, follow the manufacturer’s recommendations in your vehicle owner s manual.
ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE: image
98%
customers recommend this product
4.9/ 5
Mileage4.9
Value for money4.7
Top Pick
Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT
Valvoline™ SynPower™ Full Synthetic Gear Oil is formulated for ultimate protection and performance. A thermally stable, extreme-pressure gear lubricant, it is designed to operate and protect in both high and low extreme-temperature conditions. SynPower Gear Oil is specially recommended for limited-slip hypoid differentials and is compatible with conventional gear lubricants.
Ranking the Brands
Lucas Oil: 40.00%
Mobil 1: 20.00%
Valvoline: 20.00%
Royal Purple: 20.00%

Comparison Table

Сomparison: Lucas Oil 10121 Synthetic SAE 75W-140 Gear Oil, Red, 1 Quart (32 Ounces): imageСomparison: Mobil 1 102490 75W-140 Synthetic Gear Lube - 1 Quart: imageСomparison: Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QT: imageСomparison: Lucas 10122 75/140 Synthetic Gear Oil - 1 Gallon: imageСomparison: ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE: image
Lucas Oil 10121 Synthetic SAE 75W-140 Gear Oil, Red, 1 Quart (32 Ounces)Mobil 1 102490 75W-140 Synthetic Gear Lube – 1 QuartValvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 QTLucas 10122 75/140 Synthetic Gear Oil – 1 GallonROYAL PURPLE MAX GEAR 75W140 Quart BOTLE
Package InformationBottleBottle
Viscosity75W14075W14075W140One bottle 75-140w
BrandLucas OilMobil 1ValvolineLucas OilRoyal Purple
Liquid Volume1 Gallons1 Gallons1 Quarts
ManufacturerLUCAS OILMobil 1ValvolineLucas OilRoyal Purple
Item Weight1.99 pounds1.92 pounds1.87 pounds2.16 pounds2 pounds
Product Dimensions11.75 x 3.3 x 3.3 inches12 x 3.75 x 3.38 inches3.38 x 3.38 x 11.6 inches6 x 6 x 12 inches9 x 2 x 2 inches
Is Discontinued By ManufacturerNoNoNoNoNo

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