How to Equip Thorian Grenades?

Open the pause menu, select Equipment, go to the grenades section, then equip the anti-Thorian ones. Press X on Xbox or Square on PlayStation in this menu to see your grenade “upgrade” options.

How do you equip grenades in Mass Effect?

In Mass Effect 2 and 3, your grenades are a power that you can assign to Shepard in the Power Wheel itself. Once you've assigned them to a button, simply press that assigned button to throw a grenade.

How do I get more Thorian grenades?

By far the most effective way to find more Grenades in Mass Effect is to loot crates during missions. Simple crates littered around various levels do not need to be unlocked using the Decryption or Electronics skill. These will sometimes contain extra Grenades.