(03-15-2016 )Rawze Wrote:  ===================
Here is some info on coolants that I have collected since...

Types of coolants that can be used in a wet-liner Diesel engine (ISX, Detroit, CAT, etc...)

Conventional coolant (usually green)/cheapest -- You need to add an SCA (typically 10 Oz per 4 gallons) and maintain the Nitrate level at all times, checking it at about every oil change... You need to constantly maintain it through testing and additives, or it will will cavitate on the liners and eat through them, destroying the motor. I have seen a few truck owners destroy their engines like this,... These engines are NOT like car engines,... you cannot just dump in green coolant and forget about it,... It HAS to be maintained and monitored closely!.

Here is a picture of what happens to liners with neglected coolant systems and no nitrates!...




Pre-charged coolant (usually purple or pink). This stuff is just like cheap GREEN,... but has an initial dose of SCA. You don't need to use additives initially when dumping some in, but it HAS to be maintained just like green coolant after it is put in.

G-05 coolants. Comes pre-charged with SCA package. Occasional Fush is required with this stuff (aout every 300 - 400k miles or so). SCA testing and maintenance is required about 2 times a year.

DEX ( Dexcool) / Orange coolant you see at Wal-Mart, etc... -- NOT very good stuff for a big-rig, and NOT designed for wet-liner engines. It will mix a bit with red in a pinch,... but NOT with green!... It will become very acidic!,... Just stay away from it, that is my recommendation.


Heavy Duty Extended Life Coolants (RED Coolant). Come pre-charged with everything needed for wet liners. Testing and maintenance is needed about 2 times a year. It usually will last about 500k miles or more. I think if you want a coolant you can dump in and pretty much forget about,... this is what you should be using.


Specialty coolants -- Evans. Waterless,... There is no testing required for the stuff other than watching its color,... If it turns dark,... It is going bad and getting acidic,... attacking your aluminum components (radiator etc.). It is hard to get if you have a coolant leak,.. and CANNOT be mixed with any other type of coolant,... nor water.