Author Topic: what is a 92 Series certified automotive engine?  (Read 964 times)

Offline Low Class

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what is a 92 Series certified automotive engine?
« on: August 10, 2012, 02:16:03 PM »
I read this in the DD service manual.  It pertains to a thermatic valve located in the top of the oil filter adapter that modulates oil flow to the oil cooler.  The cooler doesn't see full flow 'till 230F.  Says  certified automotive engines had this feature to 1988 when it was deleted.

Does this mean all on-highway engines or was it a California only thing?
Jim Keefauver/1985 Wanderlodge PT36/6V92TA/MT654CR/East Tn.

Offline luvrbus

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Re: what is a 92 Series certified automotive engine?
« Reply #1 on: August 10, 2012, 08:51:53 PM »
You will see very few engines with the thermatic valve I haven't seen one in years they have all been replaced  it only lasted for a short time like the 100,000 mile oil change lol
Life is short drink the good wine first

Offline Low Class

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Re: what is a 92 Series certified automotive engine?
« Reply #2 on: August 11, 2012, 05:23:40 AM »
Thank you sir.  Sometimes the book is confusing.
Jim Keefauver/1985 Wanderlodge PT36/6V92TA/MT654CR/East Tn.