antifreeze

I need to change my anitfreeze in the Universal diesel engine. What is the best antifreeze/most popular antifreeze used in diesel engines by Ericson owners? John Laiva 1984 E 381

Hi All, I'm afraid I'm still plagued with an annoying antifreeze leak. I have a Universal M35A which is about 8 or 9 years old (1200 hrs). I have this leak which seems to appear on the starboard side of the engine & I can't for the life of me figure out where it's coming from. I've...