Coolant service cost
Was thinking about having the coolant system flushed on my mh. Called the Cummins Diesel place locally and they told me it would be $1,200. I quickly said let me think about it. Has anyone had this do...
Forum Discussion
timjet wrote:
On my '07 Cummins ISL the coolant change is every 72 months with an extender added at 36 months.
A caution. Many of the OAT-based coolants call for an extender after 36 months. And, that advice is correct for an OTR truck piling up 100,000 miles a year.
Is is NOT accurate for a motorhome only doing a few thousand miles a year. In fact, Caterpillar when back and changed their slide presentation on RV maintenance to omit the extender recommendation for Caterpillar ELC. So their ELC (and likely all other new-generation coolants of the same chemistry are "6 years, zero maintenance".
