anyone try this in their primary?

I have on my last 2 bikes. I like it.

Do i use this for a Harley Sporster?

Yes, I prefer it over the oil harley uses in gear box. Thicker and smooths out shifts. IMO

Can I use this in an open differential in my car? It calls for sae 75-140.

If it’s the same weight as what your car call for I would assume, or send a message to Lucas oil and they could clarify wether or not it’s recommended

The gear oil has very little, if any color. I use Lucas products in all my vehicles, (Harleys, SUV, and pickup). Outstanding product.

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10791 Gear Oil - 1 Quart

Product ID: 228256359

Details

Brand
Lucas Oil
Package Information
Bottle
Liquid Volume
1 Quarts
Item Weight
16 Ounces
Recommended Uses For Product
Automotive

🔥High-temp endurance - stands up to heat

⚙️75W-140 Viscosity - optimal gear protection

🏍️Specifically tuned for V-Twin & high-performance transmissions

87680CFA

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Description

⚙️ Gear up with Lucas Oil – where power meets precision!

V TWIN SPECIALIST - Tailored for motorcycle gearboxes, especially V-Twins, delivering unmatched transmission reliability.
ONE QUART POWER PACK - Compact 1-quart bottle designed for easy handling and precise application.
COOL QUIET OPERATION - Minimizes wear and drag, ensuring your ride stays smooth and whisper-quiet under pressure.
HIGH PERFORMANCE READY - Formulated to withstand extreme horsepower and elevated temperatures without breaking down.
PRECISION SYNTHETIC BLEND - Engineered with premium synthetic base oils for superior lubrication and longevity.

Lucas Oil 10791 Gear Oil is a high-quality synthetic blend designed for motorcycle gearboxes and high-performance transmissions. With a 75W-140 viscosity rating, it provides excellent protection against wear, reduces drag, and withstands high temperatures and horsepower, making it ideal for V-Twin engines and demanding riding conditions.

Reviews

D**E

Good quality oil

19.11.2025

A**.

De lo mejor en lubricantes

No hay mucho que agregar cuando hablamos de los productos de Lucas. Excelente producto.

19.05.2022

M**I

Great oil for my Harley

Definitely like the quality of this oil in my 2024 Harley Road Glide Limited. Smoother shifting and temperature control.

4.07.2025

S**.

Harley 5 speed transmission fluid

Decent price ....arrived on time

12.05.2026

L**O

bien

ME LLEGO LO SOLICITADO ANTES DE TIEMPO y de excelente calidad ya que es lo que necesitaba y lo encontré a un buen precio y servicio

16.05.2018

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87680CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Brand	Lucas Oil
Item Weight	921 g
Liquid Volume	1 Quarts
Package Information	Bottle
Recommended Uses For Product	Automotive
Viscosity	75 W - 140

10791 Gear Oil - 1 Quart

Details

Details

Description

Specifications

Reviews

Common Questions