Where ?on what?
Mostly on a belt driving something
The smell of burnt rubber is often described as similar to the scent of a tire fire or a hot rubber material.
probably being over used and the rubber inside is burning and melting....
sounds like your air conditioner compressor is bad.
The smell of burnt hair is often described as a mix of sulfur, chemicals, and a strong, unpleasant odor. It can be likened to the smell of burnt rubber or a pungent, acrid scent. The odor is distinct and easily recognizable, lingering in the air long after the burning has stopped.
Rubber
You can use either term. 'Burned' and 'burnt' are variations on the same word, just like 'learned' and 'learnt'.So you could say, 'The car smelled of burned rubber', or 'The car smelled of burnt rubber'.
In a fire, you may smell burning materials such as wood, plastic, fabric, or chemicals. The smell can be acrid, smoky, or like burning rubber, depending on what is burning. It is important to evacuate immediately and seek safety in case of a fire.
Crack has a very sweet smell, like burnt marshmellows.
burnt clutch will smell something like burnt brake pads.. usually clutch disk have semi metallic pads
The burnt rubber smell in your homemade mint oil may be due to the mint leaves being overheated during steam distillation. This can release undesirable compounds that produce the burnt rubber odor. Adjusting the distillation temperature and time, as well as using fresh mint leaves, may help to improve the aroma of the mint oil.
Like Rubber
it could be from your valve gaskets leaking oil. my car was smelling like that and my gasket seals were leaking, both front and back. after having them replaced i dont smell it anymore. KNOCK ON WOOD