There has been much speculation on here that Peak LongLife is a Dexclone, as it is phosphate and silicate free. However, after looking at the MSDS I see that the anti-corrosion package has to be 2-EH free:
"Hydrated inorganic acid, organic acid salts"
http://www.peakantifreeze.com/msds/msds_pk_longlife.pdf
Dex-Cool is NOT based on organic acid AND inorganic acid technology, so this rules out the possibility of Peak LongLife being a Dex-clone. Furthermore, on Peak's website when you click on the FAQ in the product description, it sends you to the exact same FAQ page for Peak Global Lifetime, which is specifically stated as being 2-EH free! My theory is that Peak LongLife is exactly like Peak Global Lifetime, with the same corrosion inhibitors, but less of them.
"Hydrated inorganic acid, organic acid salts"
http://www.peakantifreeze.com/msds/msds_pk_longlife.pdf
Dex-Cool is NOT based on organic acid AND inorganic acid technology, so this rules out the possibility of Peak LongLife being a Dex-clone. Furthermore, on Peak's website when you click on the FAQ in the product description, it sends you to the exact same FAQ page for Peak Global Lifetime, which is specifically stated as being 2-EH free! My theory is that Peak LongLife is exactly like Peak Global Lifetime, with the same corrosion inhibitors, but less of them.