T-4R Four Stroke Oil 10w 40-1-Liter Bottle

TORCO T-4R Four Stroke Oil 10W 40 in a 1-liter bottle is a semi-synthetic motor oil formulated specifically for four-stroke ATVs and motorcycles. This SAE 10W40 viscosity grade delivers engine protection across a wide operating temperature range, making it suitable for both cold starts and sustained high-RPM operation typical of off-road and street riding conditions.

The 10W40 viscosity rating indicates a pour point suited for winter conditions (10W) while maintaining adequate film strength at operating temperature (40). Semi-synthetic blend technology balances cost-effectiveness with enhanced oxidation resistance and wear protection compared to mineral oils. For four-stroke engines, proper oil selection is critical—these engines require oil that resists shearing and maintains viscosity throughout the combustion cycle while protecting valve trains and bearing surfaces from friction-induced wear.

The 1-liter single-bottle format suits riders who perform regular oil change intervals on smaller displacement machines or those maintaining a well-stocked shop inventory. TORCO products are engineered for powersports applications, addressing the specific lubrication demands of ATV and motorcycle four-stroke engines where heat cycling and load requirements differ from automotive service.

This oil works across varied riding scenarios—trail work, trail riding, recreational use, and general maintenance—wherever OEM four-stroke specifications call for a 10W40 motor oil. Always confirm your engine's viscosity and API service requirements before use and follow manufacturer drain intervals to maintain warranty coverage and optimal engine performance.