Just curious. Those of you who have smelled the odor in your garage...

Is the odor pretty strong/offensive?
How long does it last?
Would a simple exhaust fan (no pun intended) run for 15 mins eliminate the odor?

Thanks in Advance -- Funf Dreisig

And yes I do see the potential for yet another 'must have' X5 accessory -- the Funf Dreisig AG - Diesel Exhaust Fan for Dummies - Carbon Fiber Edition.