Diesel Gen-set Operation Instructions
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Figure 7-1 Selection of lubricating oil grade
In China, it is recommended to select lubricating oil grade as below:
Select SAE5W/30 grade lubricating oil in northern region;
Select SAE15W/40 grade lubricating oil in Central China;
Select SAE20W/50 grade lubricating oil in southern region.
You are recommended to use Weichai Power’s dedicated 15W-40 engine oil which
is mixed with imported high-quality base oil and well-chosen additives and sold by
various service outlets at a unified price in China.
Note: Do not use CD grade or below lubricating oil on the Gen-set. Be sure to
replace engine oil filter every time the engine oil is replaced!
Note: using of lubricating oil which does not meet above requirements may cause
operation loss and reliability performance reduction of the Gen-set.
Warning: the engine using lubricating oil of incorrect type or quality grade is
beyond the scope of warranty.
2.2 Method for refilling of oil
Refill engine oil to lubrication system from engine oil filler at cylinder head of diesel
Ambient temperature