10w40 Semi-Syn Oil 1 Gallon

MAXIMA RACING OILS 10W40 Semi-Synthetic Oil in a 1-gallon bottle is engineered for riders and drivers who demand reliable engine protection across variable temperature conditions. This semi-synthetic formulation bridges conventional and fully synthetic technologies, offering superior performance at a practical price point. It serves enthusiasts who require consistent lubrication for both street and moderate track applications without committing to premium synthetic pricing.

The 10W40 viscosity grade delivers excellent cold-start flow characteristics (10W rating) while maintaining film strength at elevated operating temperatures (40 rating). Semi-synthetic blends combine mineral base stocks with synthetic additives, resulting in improved oxidation stability and extended drain intervals compared to conventional oils. This formulation minimizes viscosity shear, protecting critical engine components—pistons, valve train, and bearings—during sustained acceleration and load-bearing operation.

Riders and drivers of motorcycles, ATVs, and performance vehicles benefit most from MAXIMA's 10W40 semi-synthetic offering, particularly in climates experiencing seasonal temperature swings. The 1-gallon bottle format (approximately 3.78 liters) accommodates single oil changes in most motorcycle engines and small-displacement engines, with minimal storage concerns. Compatibility spans modern four-stroke engines; verify your specific engine's manufacturer recommendations before installation.