Petronas Urania 800 20W-50 CF-4
Heavy-duty diesel oil for turbocharged and naturally aspirated engines, on and off-highway
SAE 20W-50
PETRONAS Urania Prime Classic 15W-40 is a premium heavy-duty engine oil formulated with StrongTech technology, forming a uniquely strong fluid film that protects the engine, retains performance and keeps trucks running and available for longer, helping reduce total cost of ownership. It is suitable for older-generation heavy-duty diesel applications, including turbocharged and naturally aspirated diesel engines, on-highway and off-highway, where API CF-4 is required. Urania Prime Classic 15W-40 replaces Urania 800 15W-40. It protects the engine by providing viscosity stability and preventing deposit and sludge formation to prolong oil life under severe conditions, effectively combats soot build-up, maintains optimal viscosity and lubrication throughout service life, and offers better fluid-film resistance under severe mechanical stress. Urania Prime Classic 15W-40 meets API CF-4, with performance level in line with MAN 271, MB 228.1, MTU Oil Category 1 and Volvo VDS.
Diesel engine oil, API CF-4 performance level
API's service category for high-speed four-stroke diesel engines, of the generation preceding the emissions standards. An earlier category in the API service classification, written for the engines of its era; it still appears on datasheets alongside the current categories.Source
MAN 271 — multigrade engine oil (obsolete)
MAN's old multigrade truck engine oil specification, the counterpart of MAN 270. Superseded by the M 3xxx series.
Mercedes-Benz approval 228.1
A Mercedes-Benz operating-fluid approval (BeVo sheet).
MTU's first oil quality category: standard-quality monograde and multigrade oils for older MTU engines.
| Property | Typical value | Method |
|---|---|---|
| Appearance | Bright & Clear | |
| Density @15°Cg/cm³ | 0.864 | ASTM D 4052 |
| Kinematic viscosity @100°Cmm²/s (cSt) | 14.8 | ASTM D 445 |
| Viscosity index | 145 | ASTM D 2270 |
| Flash point COC°C | > 220 | ASTM D 92 |
| TBNmgKOH/g | 6.9 | ASTM D 2896 |
| CCS at -20°CmPa*s | 6000 | ASTM D5293 |
| Pour point°C | -36 | ASTM D 97 |
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