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  1. Hello to all..... I am repairing a Bosch multi-drill model n0. gbh 4-32 DFR., due to an oil leak . I have established which oil seal needs replacing and now need to refill with the correct oil. In the service manual ,the oil quanity/grade is described as >35 ml / SAE 20 < The genuine Bosch oil ( 1 ltr) is extremely expensive . Would i be OK using SAE 20 mineral motor oil . Or should i use for hydraulic /fork or other use oil. ? All replies appreciated
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