Fa-4

Amsoil signature series diesel oils have changed in 2017 and AMSOIL synthetic diesel oils 5w-30, 0w-40, 5w-40, 15w-40 that exceed API CK-4 and API FA-4 specs have been developed and extensively tested under extreme conditions. With the API introducing two new diesel oil specifications API CK-4 and API FA-4 oil needed to be changed. These 5w-30 0w-4... 0 5w-40 15w-40 CK-4 oils will be replacing the CJ-4 specification and this has led to some confusion. In most cases, you will require an oil that meets the new API CK-4 specification. CK-4 is backward compatible with the previous diesel specifications. That means if you are using an oil recommended for API CJ-4, you can simply transition to the corresponding upgraded AMSOIL synthetic diesel oil, which will be available Feb 6 2017. Here is Information about the two new AMSOIL diesel oil lines CK-4. Weve made the transition as simple as possible: New AMSOIL Signature Series Max-Duty Synthetic Diesel Oil replaces AMSOIL Premium Synthetic Diesel Oil 5w-40 and 15w-40 [DEO,DME]. And the new AMSOIL Heavy-Duty Synthetic Diesel Oil replaces AMSOIL OE Synthetic Diesel Oil 10w-30 and 15w-40 [OED,OEC] with the addition of a 5w-40 weight. What benefits do the new formulations provide? The new diesel oils deliver better wear protection and phenomenal durability compared to industry requirements. Not only are you getting an oil that performs better, pricing remains unchanged. What should you know about the API FA-4 specification? API FA-4 was introduced to further improve fuel economy and reduce emissions. As such, oils recommended or the FA-4 specification must meet more strict fuel-economy requirements than oils recommended for CK-4. There wont be high demand for FA-4 oils since theyre not backward compatible with API CJ-4 and may only be used in certain 2017 and newer over the- road trucks, when approved by the original equipment manufacturer (OEM). Initially there will be very few applications in which FA-4 oils may be used. Its also important to know that using FA-4 oils is ...Read More