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09-14-2020, 10:59 PM | #26 | |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Which Coolant to use in a new L31, and which intake gasket?
Quote:
The main corrosion/rust inhibitor is 2-EHA (which stands for 2-ethylhexanoic acid) & has 3 drawbacks...... *If ran low & cast iron gets exposed....It will quickly rust & the rust will migrate to the heat exchangers (Radiator & Heater Core), Not an issue with all aluminum mills & unlikely to happen on Aluminum Headed mills. Maintaining proper level is very important!!! *2-EHA is known to be a Plasticizer (Softens Plastic) & did no favors to the Plastic Frame gaskets used on Vortec 350's. *The Organic Acids don't play well with Soldered Copper/Brass heat exchangers, Not that I believe the Acid eats away at the Solder, But removes the Silicates that was plugging the tiny pinholes that were already there. Air exposure in a remote coolant recovery reservoir in itself does nothing to Dexcool! Mixing incompatible coolants & off course....Running the level low enough to expose cast iron is when you see the "Death Cool" build-up. |
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