Go to the parts store and read the bottles before buying them. They will say if they are made to the spec your manufacture requires and NO you cant void you warranty if you use one that is as good. Just make sure to keep your reciept/bottle if anything should happen and the dealership looks for a out.
And if I remember right you and the guy above need Dex-Cool stuff which has additives and longer life. And if you pour in another brand with that stuff still in the engine and rad will cause a chain reaction and start to eat the metal. So make sure what ever you do, now a days with so many different types, to read your owners manual or even the cap on the overflow bottle and use what they tell you to use or all hell can break loose 😉