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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⚙️ Ride smoother, cooler, and louder in silence — gear up like a pro!

V TWIN OPTIMIZED - Specifically designed for V-Twin motorcycles but versatile for all high-performance gearboxes
HIGH HORSEPOWER READY - Formulated to withstand intense power and extreme temperatures
PREMIUM SYNTHETIC BLEND - Engineered with top-tier synthetic base oils for unmatched durability
COOL QUIET PERFORMANCE - Reduces heat and noise, ensuring smooth rides every time
HEAVY DUTY TRANSMISSION PROTECTION - Keeps your transmission running clean and efficient under pressure

Lucas Oil 10791 Gear Oil is a premium synthetic 75W-140 lubricant designed for V-Twin motorcycles and high-performance transmissions. It delivers superior cooling, noise reduction, and wear protection, standing up to high horsepower and extreme temperatures to keep your ride performing at its peak.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

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Customer service was outstanding when I had questions about the product.

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Brand	Lucas Oil
Package Information	Bottle
Liquid Volume	1 Quarts
Item Weight	16 Ounces
Recommended Uses For Product	Automotive
Viscosity	75 W - 140
Specific Uses For Product	Motorcycle gearboxes, high-performance transmissions
Item Form	Oil
Global Trade Identification Number	00049807107918
Manufacturer	Lucas Oil
Net Quantity	6096.0 Milliliters
UPC	049807407919
Number of Items	1
Model number	10791
Colour	Multi-Colored
Item Weight	453 g
Product Dimensions	22.86 x 11.05 x 6.15 cm; 453.59 g
Item model number	10791
Item Height	2.42 Inches
Item Width	4.35 Inches
Power Source	Ac
Included Components	1x 1 Quart Bottle
Are batteries included?	No

Lucas Oil 10791 Gear Oil - 1 Quart

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