MAXIMUM WEAR PROTECTION - Exceptionally high film strength dramatically reduces engine wear and engine heat so you can extend the life of your engine.
IMPROVED PERFORMANCE - Improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy.
BETTER EFFICIENCY - Exceptional oxidation stability extends oil life as a result more miles driven between oil changes saving you time and money.
CLEANS - Advanced synthetic solvency reduces engine deposits and keeps engines clean, thus increased fuel economy and engine longevity.
ADVANCED PROTECTION - Protects valve trains using roller or flat tappet lifters that require added protection due to high lift/ high ramp rate camshafts.
SUPERIOR CORROSION PROTECTION - Furthermore, maximum protection extends engine life and ramps up efficiency.
MAXIMUM WEAR PROTECTION - Exceptionally high film strength dramatically reduces engine wear and engine heat so you can extend the life of your engine.
IMPROVED PERFORMANCE - Improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy.
BETTER EFFICIENCY - Exceptional oxidation stability extends oil life, as a result, more miles driven between oil changes saving you time and money.
CLEANS - Advanced synthetic solvency reduces engine deposits and keeps engines clean, thus increased fuel economy and engine longevity.
ADVANCED PROTECTION - Protects valve trains using roller or flat tappet lifters that require added protection due to high lift/ high ramp rate camshafts.
SUPERIOR CORROSION PROTECTION - Furthermore, maximum protection extends engine life and ramps up efficiency
MAXIMUM WEAR PROTECTION - Exceptionally high film strength dramatically reduces engine wear and engine heat so you can extend the life of your engine.
IMPROVED PERFORMANCE - Improved sealing between the piston ring and cylinder wall maximizes horsepower and torque and optimizes fuel economy.
BETTER EFFICIENCY - Exceptional oxidation stability extends oil life as a result more miles driven between oil changes saving you time and money.
CLEANS - Advanced synthetic solvency reduces engine deposits and keeps engines clean, thus increased fuel economy and engine longevity.
ADVANCED PROTECTION - Protects valve trains using roller or flat tappet lifters that require added protection due to high lift/ high ramp rate camshafts.
SUPERIOR CORROSION PROTECTION - Furthermore, maximum protection extends engine life and ramps up efficiency
Royal Purple Duralec Ultra 10W-30 motor oil is specifically formulated to maximize performance and meet the demands of today’s heavy-duty engines. Duralec Ultra is fortified with a high level of zinc/phosphorus anti-wear additive and Royal Purple’s proprietary Synerlec additive technology. Synerlec creates a tenacious ionic bond with metal surfaces, providing protection upon startup and greatly increased film strength that helps eliminate metal-to-metal contact, even under severe conditions. Duralec Ultra 10W-30 reduces parasitic loss to save fuel and its synthetic solvency keeps internal engine parts cleaner than detergents alone. Superior oxidation resistance also greatly extends drain intervals and minimizes oil degradation. Duralec Ultra 10W-30 motor oil is recommended for use in both two-cycle and four-cycle diesel applications including automotive, commercial fleet and stationary industrial diesel engines.
Royal Purple specially formulated their SAE grades to be suitable for engines from trucking to general transportation. Excellent for today's turbo, supercharger and even warranty motors. Motors stay cleaner and cooler, resulting in better gas mileage, superior engine protection, and longer oil life. Now API certified.
