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Popular Diesel Engine Specs


Oil Recommendations: 2-stroke and 4-stroke Detroit Diesel engines

 
Detroit Diesel
Temperature Range

These recommendations apply within the 
normal ambient temperature range. 

For extreme cold, that is at temperatures 
below -32°C (-25°F), 
the oil recommendations change. 

Consult your oil supplier for further advice.




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Oil Analysis and recommendations
 
Detroit Diesel
Oil for 2-stroke and 4-stroke Engines

2-Stroke Engines
Use SAE 40 Mono grade oil

4-Stroke Engines
Use 15W-40 multigrade oil

There are no sulphated ash limits 
imposed for Detroit Diesel 4-cycle 
engines.



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Oil Analysis and recommendations
 
Detroit Diesel
Changing oil and filters

New Engines or 
newly overhauled engines

First oil and filter change:
After 50 hours of operation

Subsequently:
Change oil every 150 hours
Change filters every 450 hours

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Detroit Diesel 
Oil Analysis 
and recommendations
 

Elements allowed in oil of Detroit Diesel 2-stroke engines

 
Detroit Diesel 2 stroke engines
Normal and max levels of
allowable Elements in oil:

Chromium  normal 15  	max 20
Copper  	 normal 15  	max 25
Iron   	 normal 65  	max 150
Lead   	 normal 20  	max 25
Silicon  	 normal 35  	max 40
Sodium   	 normal 0
Tin    	 normal 30  	max 40



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Oil Analysis and recommendations
 
Detroit Diesel
Excess levels of allowable 
Elements in oil of 2 stroke engines

Indicates problems with:

Chromium  rings
Copper  	 Bushings, bearings, thrust washers
Iron   	 Liners, gears, camshafts
Lead   	 Bearing overlay material
Silicon  	 Dust, air leaks
Sodium   	 Internal water leaks
Tin    	 Piston plating

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Oil Analysis and recommendations
 

Trace elements in engine oil

Trace elements found by oil analysis in Detroit Diesel 2-stroke engines, are in some cases quite different from the normal ranges of elements found in 4-stroke cycle engines, therefore special mention of the 2-stroke ranges is made here.



Barrington Diesel Club
email: steve@barringtondieselclub.co.za
© copyright Steve Barrington 2016 thru 2018

Page Revision #21.4RsC 08-18