10w40 Semi-Syn Oil Case 12x1 Quart

The MAXIMA RACING OILS 10W40 Semi-Synthetic Oil Case 12x1 Quart is engineered for operators and enthusiasts who demand reliable engine protection without compromise. This case provides a full dozen quarts of premium semi-synthetic formulation, ideal for powersports applications, off-road vehicles, motorcycles, and high-performance street engines. Semi-synthetic blends bridge conventional and full synthetic technology, delivering enhanced oxidation stability and thermal protection at a practical price point for fleet maintenance and regular service intervals.

MAXIMA's 10W40 formulation uses a balanced viscosity profile that maintains optimal film strength across cold starts and sustained high-temperature operation. The 10-weight winter rating ensures rapid oil circulation in cold climates, while the 40-weight hot rating provides shear stability and load-carrying capacity under sustained throttle and heavy acceleration. The semi-synthetic base stock resists oxidation more effectively than mineral oils, extending drain intervals and reducing sludge formation in turbocharged or high-RPM engines. This case format—12 individual one-quart bottles—simplifies storage, inventory tracking, and convenient top-ups between full oil changes.

This oil suits motorcyclists, ATV/UTV operators, marine enthusiasts, and small-displacement engine builders who run consistent schedules and benefit from semi-synthetic performance gains. The 25.2-pound case ships in compact 11.6 x 8.9 x 15.7-inch packaging, making it ideal for garage storage, shop shelves, or fleet lockers. Verify your engine's recommended viscosity and API service category before use; MAXIMA 10W40 semi-synthetic is formulated to meet or exceed common automotive and powersports standards. Bulk case purchases reduce per-quart cost and ensure you have fresh stock on hand for seasonal maintenance or unexpected top-ups.