What type of antifreeze in a 2004 Mazda Tribute?

Mazda says to use their "Mazda Premium Gold", which they charge $18.00 a gal.

The Ford Escape which is built at the same plant as the Mazda and Ford says to use their "Motorcraft Premium Gold" which is the same as that of Mazda and it cost$12.00 a gal.

I use personally use Peak brand that mixes (blends) with all antifreeze, it does the job with no problems and cost between $8 - $10 a gal.