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

V TWIN SPECIALIST - Engineered specifically for V-Twin motorcycles, ensuring optimal performance and longevity.
SMOOTH QUIET RIDE - Minimizes wear and drag for a cooler, quieter transmission experience.
OEM STANDARD EXCELLENCE - Meets or exceeds all original equipment manufacturer requirements for peace of mind.
UNMATCHED HEAT ENDURANCE - Keeps your gear oil cool under extreme horsepower and temperature stress.
PRECISION SYNTHETIC BLEND - Crafted with premium synthetic base oils and advanced additives for superior protection.

Lucas Oil 10791 Synthetic SAE 75W-140 V-Twin Gear Oil is a premium synthetic lubricant designed to withstand high horsepower and temperatures. Specially formulated for V-Twin motorcycles, it ensures smooth, quiet operation while meeting or exceeding all OEM standards for heavy-duty and high-performance transmissions.

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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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Manufacturer	Lucas Oil Products Inc
Brand	Lucas Oil
Model	Synthetic SAE 75W-140 V-twin Gear Oil
Product Dimensions	22.86 x 11.05 x 6.15 cm; 453.59 g
Item model number	10791
Manufacturer part number	LUCA10791
OEM Part Number	10791
Item Weight	453 g
Viscosity	SAE 75

Lucas Oil10791 Synthetic SAE 75W-140 V-Twin Gear Oil-946ml

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