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rbanuchi's avatar
rbanuchi
Explorer
Jul 03, 2013

Changing oil on a diesel cummins generator

Does anyone know a resource to learn how to change the generator oil in my cummins generator 7500? I would like to learn to do by myself and the one thing I was told to make sure that I use the exact amount of oil to replace what is removed. Thanks for any information
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  • smlranger's avatar
    smlranger
    Explorer
    Jul 03, 2013
    The Onan 7500KW genset uses exactly 3 quarts of oil. Just remove the drain plug (threaded plug) on the bottom of the genset, drain the oil. Remove the oil filter (inside the little access door on the bottom of the genset), and replace with a new filter. Fill with 3 qts of oil.

    I always use the same oil I use in the coach diesel engine, 15W40.

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