Cybertruck engineer pushes back on claims that Tesla EVs rust in the rain — “It’s surface contamination only and can be cleaned off easily.”::A Cybertruck engineer, Wes Morrill, addressed claims Tesla’s truck rusts in the rain and said the specks of rust were the size of a “pinhead.”
Stainless steel which has been sufficiently alloyed with Chromium won’t rust. The chromium reacts with oxygen at the surface and forms an inert layer preventing oxidation of the iron in the steel. Cybertruck’s stainless steel simply doesn’t have enough Chromium.