Cat C-7 diesel oil viscosity
I have a 2004 Cat C-7 in a 36' Meridian which I have been using Rotella 15W-40 oil in it since new 68,000 miles back. Seems I remember reading somewhere the thought was that 10W-30 was better for the...
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Jarlaxle,
Unless you can post a link to what you recall I would say your recollection is wrong. Those numbers would be harmful to a C-7. My C-7 Operators manual says change when 1100 gallons of fuel are burned. On a typical C-7 that will be "about" 7500 miles. The manual is a engine manual and does not specify what the application is. If you do other than what CAT recommends don't come badmouthing them if you have engine failure.
Jim
Unless you can post a link to what you recall I would say your recollection is wrong. Those numbers would be harmful to a C-7. My C-7 Operators manual says change when 1100 gallons of fuel are burned. On a typical C-7 that will be "about" 7500 miles. The manual is a engine manual and does not specify what the application is. If you do other than what CAT recommends don't come badmouthing them if you have engine failure.
Jim
