Motul Competition 75W-140 Gear Oil - 1 Quart

Motul Competition 75W-140 Gear Oil - 1 Quart

Your transmission or differential's got stock gear oil that's been in there since the car was built. It's old. It's broken down. It's not protecting the gears anymore. You're shifting hard or you're launching hard and the gears are grinding because the oil's not doing its job. Motul Competition 75W-140 is what you put in when you're done with stock gear oil and you need something that'll actually survive. This is ultra-high-performance gear oil designed for racing transmissions and differentials. It's got friction modifiers built in so it works with limited slip differentials. It's reinforced with molybdenum disulphide to handle heavy loads and act as anti-wear protection. You're running this in your transmission and your shifts are smoother. You're running it in your differential and the gears aren't whining anymore. This is what goes in race cars running speedway, rally, and raid. If it can handle that, it can handle your street build or your weekend track car.

Here's Why Stock Gear Oil Fails

Stock gear oil's designed for normal driving. Moderate loads. Normal temperatures. It works fine when you're commuting to work and shifting like a normal person. When you're shifting at redline or launching hard or running track days, the stock oil breaks down. The oil gets hot. The viscosity drops. The film strength isn't there anymore. Metal's touching metal. The gears wear. The synchros wear. The bearings wear. You start hearing whine from the transmission or the differential. You start feeling notchiness in the shifts. That's the gears telling you the oil's not protecting them anymore. Motul Competition 75W-140 is designed for racing applications where the loads and temperatures are way higher than stock. It's got extreme pressure additives that protect the gears under high load. It's got friction modifiers that work with limited slip differentials. It's reinforced with moly to handle shock loads and prevent wear. The oil doesn't break down when you're beating on it. The gears stay protected. The shifts stay smooth.

Works in Transmissions, Differentials, Transfer Cases, Everything

Motul Competition 75W-140 works in manual transmissions, differentials with limited slip systems, transfer cases, and hypoid differentials without limited slip. If it's got gears and it needs gear oil, this works. You're running it in your manual transmission and the shifts are cleaner because the synchros aren't fighting against oil that's too thick or too thin. You're running it in your limited slip differential and the LSD's working correctly because the friction modifiers are letting the clutch packs engage and disengage smoothly. You're running it in your transfer case and the gears aren't whining because the oil's protecting them under load. The oil's designed for synchronized and non-synchronized gearboxes. It works with hypoid gears. It works under shock loads. It works under heavy loads at low RPM. It works under moderate loads at high RPM. Whatever you're doing with your drivetrain, this oil handles it.

Molybdenum Disulphide for Anti-Wear Protection

Motul reinforces this gear oil with molybdenum disulphide. That's moly. Moly's a solid lubricant that bonds to metal surfaces and acts as an anti-wear layer. When the oil film gets thin under extreme load, the moly's still there protecting the gears. The gears aren't touching each other. They're touching the moly layer. That's what keeps the gears from wearing when you're launching hard or when you're loading up the differential in a corner. The moly also helps with noise. Noisy transmissions and differentials are usually noisy because the gears are wearing or because the oil's not dampening the gear mesh noise. Motul's moly-fortified gear oil reduces gear noise and protects against wear at the same time. You're getting quieter operation and longer gear life.

75W-140 Viscosity - Thick Enough to Protect, Not Too Thick to Shift

75W-140 is a heavy gear oil. The 75W means it flows like a 75-weight oil when it's cold. The 140 means it acts like a 140-weight oil when it's hot. You need the thickness when the oil's hot because that's when the loads are highest and that's when the oil film needs to stay strong. You don't want it so thick when it's cold that you can't shift. 75W-140 gives you both. It flows when it's cold so you can shift smoothly when you first start the car. It stays thick when it's hot so the gears stay protected under load. This is the viscosity Motul recommends for racing transmissions and differentials. If you're running a high-horsepower build or you're tracking the car, 75W-140's what you want. If you're just street driving and you're not making serious power, you might be fine with a lighter weight like 75W-90. But if you're here looking at Competition 75W-140, you probably already know you need the heavy stuff.

What You Get

• Motul Competition 75W-140 gear oil - 1 quart (946 ml)
• Ultra-high-performance gear oil for racing applications
• 75W-140 viscosity (flows at low temp, protects at high temp)
• Reinforced with molybdenum disulphide (moly for anti-wear protection)
• Friction modifiers for limited slip differentials
• Extreme pressure additives (protects gears under high load)
• Works in manual transmissions, differentials, transfer cases, hypoid gears
• Reduces gear noise and wear
• Made by Motul

Where to Use It

• Manual transmissions (synchronized and non-synchronized)
• Limited slip differentials (clutch-type LSD with friction modifiers)
• Open differentials (hypoid and non-hypoid)
• Transfer cases
• Gearboxes operating under shock loads, heavy loads, or high RPM
• Racing transmissions and differentials (speedway, rally, raid, track)

Note: 1 quart bottle (946 ml). Most transmissions hold 2-3 quarts, most differentials hold 1-2 quarts - buy enough to fill your application. 75W-140 viscosity (heavy gear oil for high-load racing applications). Reinforced with molybdenum disulphide (moly bonds to metal surfaces for anti-wear protection under extreme loads). Includes friction modifiers for limited slip differentials (LSD-safe, clutch-type LSD compatible). Extreme pressure additives protect gears under high load. Works in manual transmissions, limited slip differentials, open differentials, transfer cases, hypoid gears, synchronized and non-synchronized gearboxes. Designed for racing applications (speedway, rally, raid) but works in street builds making serious power. Reduces gear noise and protects against wear. Handles shock loads, heavy loads at low RPM, and moderate loads at high RPM. If you're running a high-horsepower build or tracking the car regularly, 75W-140 is what you want. If you're just street driving with moderate power, 75W-90 might be fine. Made by Motul.