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Hi. My NC has a real "rotten egg" odour after driving. When I pull into the garage, the sulphur smell is quite strong. Any ideas on what may be causing this? Faulty catalytic convertor? I doubt it is bad fuel, as I have continued to buy fuel from the same place and it is not a problem in our other cars.

Thanks in advance!

i think you almost answered your own question.

Batteries that are overcharging also do this.

Caused by a faulty alternator regulator.

Dann

Thanks for the replies.... It is under warranty, so I will take it in to get looked at. Wanted to make sure it was not a common issue before I do anything.

Using e10?

who farted?

Using BP Ultimate.....

did you manage to get the smell away? i use bp ultimate too in mine and i've had that smell as well, nearly all the time

wondering if i should get it checked out also

Gearbox/diff oil can be rather pungent.

Mine doesn't do it - not that I've detected anyway. I use mostly Caltex Vortex 95 and the car has done 72,000km. I've experienced this odour following certain cars (mostly Toyotas) but never an NC.

Whenever I smell rotten eggs when I'm driving I look for the nearest new Commodore. There's almost always one in front. It's a special feature of the catalytic convertor that Holden use that they can absolutely stink when new. It goes away as the cat wears out and stops working.

It's usually nothing to do with the fuel. You don't need sulphur to produce sulphur-like smells. Some hydrocarbons like methyl mercatan smell more like sulphur than sulphur does.