aluminum heater core and brass/copper radiator

[smiley]

What coolant should I use? I am about to replace my aluminum radiator with a copper brass one but my heater core is still aluminum. What coolant should i use?

[RCP Phx]

What are trying to imply, you've also got a aluminum wp and t-stat housing bolted to a steel block/head?

[cal]

Any coolant.

You're overthinking it.

[Black1990jeep]

Been using Prestone extended life coolant for decades in a Triumph car, aluminum and copper parts, along with cast iron. change it out every 3 or 4 years, even though the bottle says it is good for 5 years. No problems also run same in an old porsche with a cast iron Buick 231, and copper radiator, aluminum thermostate housing.

[smiley]

Thanks for the replies

[smiley]

Originally Posted by cal

Any coolant.

You're overthinking it.

This is the third time this week I've been accused of overthinking stuff. Lol I can't help but loce researching stuff.