unkledaddy wrote:
I probably will go to Cummins locally and see about changing over to
their OAT coolant. Three years ago they talked me out of it. I'll see
what they have to say now, with three more years of experience and
re-formulations. When I see that big poster on their wall offering
an in chassis re-sleeve with a dollar amount (knowing it's more for
a DP than a semi) I either want to get back to my old gas model or
do some serious research on coolants.
I feel your pain. I have an '03 vintage Cummins and after exploring the coolant options I have decided that "if it ain't broke, don't fix it". I decided that its not such a bad thing to think about my coolant a couple of times a year and pull a sample & test it. Conventional coolant with the DCA package is an excellent coolant in every way and is universally available if you have a need on the road. Mixing brands is not a problem. With OAT you should be careful about topping up with same brand as all OAT coolants do not use compatable formulations and you could leave yourself without cavitation protection.
I just flushed & filled with Fleetguard ES Complete EG. I will change my coolant filter with a DCA charged one annually and use test strips every six months or so.
I
