SHIELD® CLASSIC
CONVENTIONAL PASSENGER CAR ENGINE OIL
Phillips 66® Shield Classic Motor Oil, SAE 20W-50 is a premium conventional automotive engine oil designed for gasoline-fueled passenger cars and light trucks operating under high-temperature conditions where the manufacturer specifies an SAE 20W-50 engine oil.
This motor oil is also suitable for gasoline-fueled competition and high-performance street engines that prefer SAE 20W-50 engine oil. Under all operating conditions, it offers comprehensive engine protection for turbocharged gasoline direct injection and conventional gasoline-fueled and flex-fueled passenger cars and light trucks. However, it's not recommended for new vehicles under warranty.
Formulated to offer excellent wear protection, Shield Classic Motor Oil minimizes the formation of sludge and varnish. It resists viscosity and thermal breakdown, even in severe service. It also guards against rust and bearing corrosion and is resistant to foaming.
Links of Interest
Features & Benefits
- Helps protect against low speed pre-ignition (LSPI) in turbocharged gasoline direct injection engines (TGDI)
- Resists viscosity and thermal breakdown at high temperatures
- Protects against sludge and varnish formation
- Protects against wear
- Protects against rust and bearing corrosion
- Good foam resistance
Applications
- Turbocharged gasoline direct injection and conventional gasoline-fueled light trucks and sport utility vehicles where a SAE 20W-50 engine oil is specified
- Gasoline-fueled competition engines and high-performance street engines
Technical Details
Licenses & Approvals:
Shield Classic Motor Oil is licensed for:- API service SP, SN Plus
- Backward serviceable for use where API SN or earlier "S" category engine oils are recommended
Additional Details:
| SAE Grade | 30 |
| Specific Gravity @ 60°F | 0.882 |
| Density, lbs/gal @ 60°F | 7.35 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 250 (482) |
| Pour Point, °C (°F) | -33 (-27) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 95.0 |
| cSt @ 100°C | 11.5 |
| Viscosity Index | 109 |
| Cold Cranking Viscosity, cP | |
| @ (°C) | |
| High-Temp/High-Shear Viscosity, cP @ 150°C | 3.4 |
| Sulfated Ash, ASTM D874, wt % | 0.8 |
| Total Base Number (TBN), ASTM D2896 | 7.0 |
| Phosphorus, wt % | 0.077 |
| Zinc, wt % | 0.085 |
Licenses & Approvals:
Shield Classic Motor Oil is licensed for:- API service SP, SN Plus
- Backward serviceable for use where API SN or earlier "S" category engine oils are recommended
Additional Details:
| SAE Grade | 40 |
| Specific Gravity @ 60°F | 0.884 |
| Density, lbs/gal @ 60°F | 7.36 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 254 (489) |
| Pour Point, °C (°F) | -28 (-18) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 128 |
| cSt @ 100°C | 13.6 |
| Viscosity Index | 102 |
| Cold Cranking Viscosity, cP | |
| @ (°C) | |
| High-Temp/High-Shear Viscosity, cP @ 150°C | 3.9 |
| Sulfated Ash, ASTM D874, wt % | 0.8 |
| Total Base Number (TBN), ASTM D2896 | 7.0 |
| Phosphorus, wt % | 0.077 |
| Zinc, wt % | 0.085 |
Licenses & Approvals:
Shield Classic Motor Oil is licensed for:- API service SP, SN Plus
- Backward serviceable for use where API SN or earlier "S" category engine oils are recommended
Additional Details:
| SAE Grade | 20W-50 |
| Specific Gravity @ 60°F | 0.878 |
| Density, lbs/gal @ 60°F | 7.37 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 230 (446) |
| Pour Point, °C (°F) | -30 (-22) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 181 |
| cSt @ 100°C | 19.9 |
| Viscosity Index | 127 |
| Cold Cranking Viscosity, cP | 7,500 |
| @ (°C) | (-15) |
| High-Temp/High-Shear Viscosity, cP @ 150°C | 5.0 |
| Sulfated Ash, ASTM D874, wt % | 0.8 |
| Total Base Number (TBN), ASTM D2896 | 7.1 |
| Phosphorus, wt % | 0.077 |
| Zinc, wt % | 0.085 |