Forum Discussion
smlranger
Jul 03, 2013Explorer
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.
I always use the same oil I use in the coach diesel engine, 15W40.
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