What's the difference between CJ 4 and CK 4 oil?
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Besides, what is a CJ 4 oil?
API Service Category CJ-4 describes oils for use in high-speed four-stroke cycle diesel engines designed to meet 2007 model year on-highway exhaust emission standards as well as for previous model years. CJ-4 oil with higher than 15 ppm sulfur fuel, consult the engine manufacturer for service interval.
Likewise, what's the difference between cj4 and ck4 oil? The new CK-4 oils will provide a number of improvements over CJ-4, including improved shear stability, oxidation resistance, and aeration control. API FA-4 oils will provide similar improvements over CJ-4 oils, but it is important to note that FA-4 oils are only intended for use in newer on-highway diesel engines.
Keeping this in view, what does API CK 4 mean?
The API description states that FA4 refers to XW-30 oils meant for “select” diesel engines. Ones that comply with 2017 standards that govern on-highway greenhouse gas emissions. The oils must be appropriate for use on the highway with up to 15 ppm sulfur content in the diesel fuel.
Is CK 4 oil synthetic?
Yes, CK-4 engine oils will replace CJ-4 engine oils. There are two specifications; CK-4 and FA-4. You'll be able to buy the same viscosity grades and oil types (conventional, full synthetic, synthetic blend) you're using now, and they'll be completely “backwards compatible” to ALL current vehicles.