Nissan 370Z Forum - View Single Post - Propane-like smell coming from car.

CBRich · 12-19-2010, 10:28 AM

Ethanethiol is toxic. It occurs naturally as a minor component of petroleum.

The above is taken from wikipedia. This is the stuff that gives propane that smell. Humans can smell it at super low levels. I noticed you have aftermarket exhaust components? Have you checked for leaks? Also, this smell is common with failing cats. Are they overheating?

And the fact that it is coming through the A/C would make sense if you have the recirc off. The air is just pulled from the cowl.

12-19-2010, 10:28 AM	#7 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	Ethanethiol is toxic. It occurs naturally as a minor component of petroleum. The above is taken from wikipedia. This is the stuff that gives propane that smell. Humans can smell it at super low levels. I noticed you have aftermarket exhaust components? Have you checked for leaks? Also, this smell is common with failing cats. Are they overheating? And the fact that it is coming through the A/C would make sense if you have the recirc off. The air is just pulled from the cowl. Last edited by CBRich; 12-19-2010 at 10:31 AM.