Castrol 15B838 Assuron 50 Heavy-Duty Diesel Engine Oil SAE 50 5-Gallon Pail

Castrol Assuron 50 is a high-performance, heavy-duty monograde diesel engine oil formulated with carefully selected base stocks and a balanced additive package. Designed for on- and off-highway diesel engine applications, Assuron 50 is engineered to meet the demands of older and legacy diesel engines requiring API CF-2 or CF quality monograde lubricants. This listing is for a single 5-gallon pail.

Key Features:

• API CF-2 / CF Certified — meets or exceeds both API CF-2 and API CF specifications for heavy-duty diesel engines
• High-Temperature Deposit Resistance — extremely resistant to the formation of high-temperature deposits, keeping combustion areas clean
• Advanced Dispersant Package — works to prevent sludge and harmful deposit buildup in cooler engine areas
• Proven On- and Off-Highway Performance — validated in a wide range of heavy-duty diesel engine applications including generators, construction equipment, and commercial vehicles
• Extended Engine Protection — enhances engine performance and protects engine parts for extended service life and reduced maintenance costs

Typical Specifications (SAE 50):

• Viscosity @ 40°C: 208 cSt (ASTM D-445)
• Viscosity @ 100°C: 19.3 cSt (ASTM D-445)
• Viscosity Index: 99 (ASTM D-2270)
• Pour Point: -24°C (ASTM D-97)
• Sulfated Ash: 0.95% wt. (ASTM D-874)
• Total Base Number: 7.5 mg KOH/g (ASTM D-2896)
• Specific Gravity @ 60°F: 0.895 (ASTM D-1298)
• Weight: 7.46 lbs/gallon

Castrol Assuron 50 is the ideal choice for fleet operators, equipment managers, and service facilities maintaining older diesel-powered machinery that specifies a monograde SAE 50 engine oil meeting API CF-2 or CF requirements.