Tom
Administrator
- Joined
- Jan 13, 2005
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- 51,857
I need to add a pint or two of coolant to my coach. The existing coolant is ethylene glycol based. The Cummins manual is adamant that it needs to be 'heavy duty' meeting some Cummins specs. I've driven around several auto parts stores today and all I can find is stuff that's rated for "automobiles and light duty trucks" with no mention of the Cummins specs. A NAPA parts store told me that there's a heavy duty version of one of the brands, but they don't stock it. I called in an RV repair shop and they told me "we just put in regular antifreeze".
What makes a coolant 'heavy duty' and where might I find it?
BTW the coach doesn't leak coolant. The only way to change the DCA filter is to clamp the hoses, but this doesn't totally stop the flow, so some escapes (I was prepared and caught it in a bucket, but the bucket wasn't clean).
TIA
What makes a coolant 'heavy duty' and where might I find it?
BTW the coach doesn't leak coolant. The only way to change the DCA filter is to clamp the hoses, but this doesn't totally stop the flow, so some escapes (I was prepared and caught it in a bucket, but the bucket wasn't clean).
TIA