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CK-4 is the successor to CJ-4, the current latest API standard.
It is being furiously worked on behind the scenes by every oil / additive manufacture.
ETA Fall, 2010.
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I can think of one that might not be working so hard as their supposed true synthetic oil isn't even up to CJ-4 spec, but I digress.
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CK-4, aka ASTM PC-11:
Please go to page 32 of this presentation to see what is tested for oil.
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Also:
Please see page 91 for biodiesel and engine oils...
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Things are not so simple as to just use biodiesel and there are no issues beside the fuel system.
It directly affects lubrication.
As for what ASTM PC-11 aka CK-4 addresses, the hot button issues are:
- emissions
- biodiesel
I cannot say much more.
#14
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Join Date: Feb 2005
Location: The Great State of Texas
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CK-4, aka ASTM PC-11:
Please go to page 32 of this presentation to see what is tested for oil.
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Also:
Please see page 91 for biodiesel and engine oils...
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Things are not so simple as to just use biodiesel and there are no issues beside the fuel system.
It directly affects lubrication.
As for what ASTM PC-11 aka CK-4 addresses, the hot button issues are:
- emissions
- biodiesel
I cannot say much more.
Please go to page 32 of this presentation to see what is tested for oil.
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Also:
Please see page 91 for biodiesel and engine oils...
http://www.jalos.or.jp/onfile/pdf/2009_DEO_Seminar.pdf
Things are not so simple as to just use biodiesel and there are no issues beside the fuel system.
It directly affects lubrication.
As for what ASTM PC-11 aka CK-4 addresses, the hot button issues are:
- emissions
- biodiesel
I cannot say much more.