Transmission Oil

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Transmission oil is the difference between a gearbox that shifts clean and one that grinds. Putoline and Motul formulate grades from 30W scooter-specific oils through to 80W90 for heavy-duty applications, covering wet-clutch, V-twin, and general-purpose gearbox requirements across the full range of road bikes. Choosing the right transmission oil for your motorcycle Transmission oil selection is determined by three fixed facts: your manufacturer's specified viscosity grade, whether your bike runs a wet clutch sharing oil with the gearbox, and the operating temperature range of your riding. Getting these wrong causes clutch slip, premature gear wear, and false neutrals. Getting them right is a one-minute job that protects thousands of kilometres of drivetrain life. Viscosity grades in this range Viscosity defines how an oil flows at temperature. A 75W grade is a lighter, low-viscosity oil suited to most manual gearboxes running moderate loads. A 75W90 adds a slightly higher viscosity band at operating temperature, improving film strength under load. An 80W90 is a heavier grade covering high-load applications including V-twin primary drives. A 30W is a purpose-specific scooter grade formulated for the tight tolerances and CVT-adjacent gearboxes in small-displacement automatic and semi-automatic machines. Matching viscosity grade to the OEM specification is non-negotiable. Putoline vs Motul: formulation comparison Brand Key grades available Additive technology Wet-clutch safe Scooter-specific option Putoline 30W, 75W, 75W90, 80W90 EP (extreme pressure) additives on heavy grades Yes (check grade) Yes , 30W and 125ml pocket format Motul 80W90 Molybdenum friction modifier Yes No Key technical facts Motul's Gearbox 80W90 uses a molybdenum-based friction modifier that reduces internal gear-face wear under sustained load. Putoline's EP Heavy Gear Oil at 80W90 carries extreme-pressure additives rated for high gear-tooth contact pressures. Putoline N-Tech Trans GP is a syntheti

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