Drum charge: $50.00 refundable when returned in original condition (tote deposit $250.00 if applicable)

Premium Canadian-made BOSS Supreme full synthetic and synthetic blend gasoline engine oils formulated to exceed API SP and ILSAC GF-7 standards. These oils are specifically engineered for modern turbocharged GDI/TGDI, small-displacement high-RPM, naturally-aspirated gasoline, propane, and natural gas engines in passenger cars, light trucks, SUVs, motorcycles, and high-performance vehicles. They deliver outstanding LSPI (low-speed pre-ignition) protection, maximum wear control, exceptional deposit/sludge prevention, superior oxidation stability, and excellent cold-weather performance – perfect for the harshest Canadian conditions and high-temperature turbo operation.

All grades provide proven protection against high-temperature oxidation, wear, rust, corrosion, and viscosity breakdown while keeping engines exceptionally clean and free of sludge/varnish deposits – even under severe operating conditions. Full synthetic grades use premium Group III base stocks for ultimate thermal stability and extended drains, while synthetic blends offer excellent performance at a value price.

✅ Key Benefits:

• Full LSPI protection for turbocharged GDI/TGDI engines
• Outstanding wear, rust, and corrosion protection
• Exceptional deposit & sludge control – engines stay cleaner longer
• Superior oxidation and thermal stability for extended oil life
• Excellent cold-weather flow and pumpability
• Enhanced fuel economy (especially lower viscosity grades)
• Controls varnish deposits in high-temperature turbo operation
• Recommended for domestic and foreign high-performance engines
• Proudly formulated and bottled in Canada

✅ Grade-Specific Advantages:

• 5W-20 Synthetic Blend → Excellent all-season protection and value – ideal for Honda, Toyota, Hyundai, Kia, and vehicles requiring 5W-20 SP/GF-7 or dexos1 Gen 3.
• 5W-30 Synthetic Blend → Premium partial-synthetic for daily drivers and fleets – perfect for GM, Ford, Chrysler, and imports needing 5W-30 SP with LSPI defense.
• 10W-30 Synthetic Blend → Robust protection for warmer climates and older engines – suits high-mileage vehicles, light trucks, and equipment requiring 10W-30 SP.
• 10W-30 Full Synthetic → Maximum durability for high-RPM and turbo applications – great for performance engines and severe service needing 10W-30 SP.
• 5W-20 Full Synthetic → Ultimate cold-start flow and fuel economy – top choice for modern vehicles specifying 5W-20 SP/GF-7 or dexos1 Gen 3.
• 5W-30 Full Synthetic → Superior all-season performance and protection – the go-to for turbocharged imports, high-performance, and engines requiring 5W-30 SP/dexos1 Gen 3.

Typical Physical Specifications (values are representative of current production):

5W-20 Synthetic Blend • Kinematic Viscosity @ 40°C: 50 cSt • Kinematic Viscosity @ 100°C: 8.7 cSt • Viscosity Index: 151 • Flash Point: 218°C • Pour Point: –40°C • CCS Viscosity @ –30°C: 6000 cP

5W-30 Synthetic Blend • Kinematic Viscosity @ 40°C: 61.7 cSt • Kinematic Viscosity @ 100°C: 10.5 cSt • Viscosity Index: 159 • Flash Point: 224°C • Pour Point: –40°C • CCS Viscosity @ –30°C: 6300 cP

10W-30 Synthetic Blend • Kinematic Viscosity @ 40°C: 67.2 cSt • Kinematic Viscosity @ 100°C: 10.5 cSt • Viscosity Index: 145 • Flash Point: 236°C • Pour Point: –37°C • CCS Viscosity @ –25°C: 6100 cP

5W-20 Full Synthetic • Kinematic Viscosity @ 40°C: 52.5 cSt • Kinematic Viscosity @ 100°C: 9 cSt • Viscosity Index: 156 • Flash Point: 232°C • Pour Point: –45°C

5W-30 Full Synthetic • Kinematic Viscosity @ 40°C: 58.2 cSt • Kinematic Viscosity @ 100°C: 10.5 cSt • Viscosity Index: 173 • Flash Point: 234°C • Pour Point: –43°C

10W-30 Full Synthetic • Kinematic Viscosity @ 40°C: 63.6 cSt • Kinematic Viscosity @ 100°C: 10.7 cSt • Viscosity Index: 155 • Flash Point: 235°C • Pour Point: –40°C

Meets or Exceeds: • API SP / SN Plus / SN • ILSAC GF-7 / GF-6A / GF-6B • GM dexos1™ Gen 3 (all grades except 10W-30; 10W-30 meets dexos1 Gen 2) • GM 6094M • Chrysler MS-6395 N / MS-10797 (5W-20 only) • Ford WSS-M2C929-A, WSS-M2C930-A, WSS-M2C946-A, WSS-M2C961-A1 • Suitable for Honda, Toyota, Hyundai, Kia, Mazda, Nissan, Subaru, and most vehicles requiring API SP or earlier specifications • Recommended for passenger vehicles, light-duty pickups, motorcycles, and other gasoline engines

Package Size: • 205L steel drum (bulk – presold only) 

Made in Canada

EHC is included in the price

Safety Sheet Data