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AL49er's avatar
AL49er
Explorer
Apr 10, 2014

How to chang my oil in my 2004 C7 Cat 330

Changing oil is getting pricey so I'm going to do it my selfe.
I know It holds 19qt of oil but where are the oil filters?
withc side is the oil filter on, is there more then one? And
How to changed antifreze and how hard is it?
Thanks Al.

11 Replies

  • You don't list a coach name so location or the oil filter will vary. Mine have always been up inside the frame rails close to the engine and there will be only one oil filter. Depending on the manufacturer of your coach you will also have one or two fuel filters. The oil filter is large and you will need a big strap wrench in order to get it off. When I changed my antifreeze on my Cat there were drain points in the hoses running up to the heater core in the front of the coach and I used those to drain my system.