Published 31st May, 2016
The American Petroleum Institute (API) has introduced a new symbol for FA-4 diesel engine oil.
The "donut", designed to help consumers differentiate API FA-4 diesel oils from CK-4 oils has a shaded section and will look the same as the current CJ-4 donut.
The new donut symbol Image: API |
“API is introducing a diesel engine oil category for use in truck engines designed to meet 2017 model year on-highway greenhouse gas emission standards,” said Kevin Ferrick, senior manager for engine oil licensing.
He continued, “The FA-4 donut was developed to help truck owners who need FA-4 oils easily recognize the oil and distinguish it from CK-4 oils.”