Koyoto 15W50 CK-4/SN series are advanced performance low-SAPS fully synthetic diesel engine oils formulated with severely refined base stocks and sophisticated technology additives to provide outstanding engine performance in the latest emission designs, including those with after-treatment systems with Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR) and Diesel Oxidation Catalyst (DOC). It may be used in both new and old diesel engines for On & Off-highway applications, due to its backward compatibility down to CJ-4 specifications and may also be used in gasoline engines requiring the API SN specification. They are specifically formulated to deliver excellent wear and engine protection, extended drain capability with excellent TBN retention, outstanding high-temperature performance, and engine cleanliness.
Koyoto 15W50 CK-4/SN series are advanced performance low-SAPS fully synthetic diesel engine oils formulated with severely refined base stocks and sophisticated technology additives to provide outstanding engine performance in the latest emission designs, including those with after-treatment systems with Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR) and Diesel Oxidation Catalyst (DOC). It may be used in both new and old diesel engines for On & Off-highway applications, due to its backward compatibility down to CJ-4 specifications and may also be used in gasoline engines requiring the API SN specification. They are specifically formulated to deliver excellent wear and engine protection, extended drain capability with excellent TBN retention, outstanding high-temperature performance, and engine cleanliness.
Koyoto 15W50 CK-4/SN meets or exceeds following International and Builder specifications:
Typical Characteristics
| Koyoto 15W50 CK4 | Test Method | Units | RESULTS |
| Density @ 15 0C | ASTM D 4052 | gm/cc | 0.870 |
| Viscosity @ 100 0C | ASTM D 445 | cSt | 20.4 |
| Viscosity @ 40 0C | ASTM D 445 | cSt | 166.7 |
| Viscosity Index | ASTM D 2270 | – | 143 |
| Pour Point | ASTM D 97 | °C | -30 |
| Flash Point (COC) | ASTM D 92 | °C | 225 |
| Total Base Number | ASTM D 2896 | mg KOH/g | 9.6 |
| Sulfated Ash | ASTM D 874 | % wt | 0.9 |
| CCS Viscosity | ASTM D 5293 | cP | 6200 @ -20°C |
The above figures are typical of blends with normal production tolerance and do not constitute a specification.
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