Sorry, guys, but Prestone AMM is a Dexclone. Both (AMM & Dexcool) are OAT (organic acid technology) coolants that contain 2-EH (the plasticizer that attacked the LIM gaskets on GM engines). It is most certainly NOT a conventional green-type coolant.

If you can't find conventional green, I would use G-05 after a thorough flush. G-05 is rated for 5 years like the Dexclones, but is a HOAT and does not contain 2-EH.

It's Swifty! Swifty, you toad sucker!