New follower here. Will attempt link: http://blogs.motortrend.com/1501_replacing_precious_metals_with_fake_rubies_technologue.html If link won't post here is pertinent info: engines undergoing development testing today include GM's 2.0-liter, Mini's 1.6-liter direct-injected turbo-fours, experimental Audi four-banger and even some port-injected engines. Precious metal material requirements 80-90% lower than currently used. CDT .. further research might one day completely replace .. platinum. CDT hope is that 2018 or 2019 model year vehicles could feature Spinel catalysts. milner