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Detroit Diesel Oil Analysis - amp

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Detroit Diesel Oil Analysis: Meanings and recommendations - amp

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

 

Detroit Diesel
Temperature Range 

Recommendations apply
within the normal ambient 
temperature range. 

For extreme cold, 
that is at temperatures 
below -32 degreesC 
(-25 degreesF), the oil 
recommendations change. 

Consult your oil supplier 
for further advice.


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Detroit Diesel 
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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Detroit Diesel 
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 engine

 

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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Detroit Diesel 
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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Detroit Diesel 
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.







 
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