Zeb
I have to agree with Steve here. .
Over the last 25+ years almost all automotive ethylene glycol has been green until recently when Dex cool and others arrived on the seen,the green stuff is cheaper than the diesel formulations and is approved for Virgin block engines ( those where the cylinder bores are bored directly into the casting not wet sleeved)
The biggest difference is that the coolants formulated for heavy diesel engines contain more additives designed to keep the coolant from cavitation around the wet sleeve caused by vibration.
This cavitation becomes a problem in a wet sleeved engine as it can and will erode the cylinder sleeves and even the block where the sleeve O rings seal
Causing these O rings to leak coolant into the crank case or even cavitate though the sleeve walls into the combustion chamber .
Even in diesel coolants with all the good additives packages for cavitation, rust inhibitor, etc. their effectiveness diminishes with time and usage .
Cummins as well as may other sources manufacturer test strips to measure the levels of these additives in the coolant .
There are also additive supplements to help maintain or boost the levels for longer life of the coolant package.
But in the end there are some coolants that are not compatible with each other and can create problems like gelling of the coolant there fore its best to start out knowing what coolant is in the system and stay with it.
https://www.amazon.ca/Fleetguard-CC2602-Coolant-3-Way-bottle/dp/B01CPU734S/ref=asc_df_B01CPU734S?mcid=02c65bf8fc10318ea0b347c5bec84f10&tag=googleshopc0c-20&linkCode=df0&hvadid=706745692750&hvpos=&hvnetw=g&hvrand=12063193660518881228&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9000653&hvtargid=pla-911646373560&psc=1&gad_source=1https://www.amazon.ca/Cummins-Filtration-Fleetguard-Coolant-Additive/dp/B084Z16VD4Hope this helps
Eric
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