Rust rash

Rust rash is a symptom of Transformer illness from the Generation 1 continuity family.

Under certain malign conditions, Transformers may develop a rust rash.

Fiction

Marvel Generation 1 comics

Straxus once had a rust-spot rash. In error-filled form, the information made its way to Scrounge who reported to the other Autobots that Straxus was dying. The Smelting Pool!

The Technobot Lightspeed is allergic to most fuels commonly consumed by his kind. This means he must always take a special lead sulfide additive when refueling. If he doesn't, his engine will experience severe knocking, a rust rash among the consequences. Lightspeed's Universe bio