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...
Forum Discussion
moisheh wrote:
Tinkerer: 500 hours is about 20,000 plus miles. Keep doing that in a C7 and you will quickly be paying a Cat mechanic about $5000 for a new pump and injectors. The C7 needs clean oil!
Moisheh
I recall the factory recommendation (from Caterpillar) for a C7 in a truck was 15K or 500 hours.
