Knowing that Exxon/Mobil is the highest sulphur content gas on the market, I filled up with Mobil 93. On my way to work I goosed the throotle pretty good and came to a stoplight. Whew! I smelled the sulphur. Not enough to demand the impeachment of the Toyota President, but I now empathize with any '03 owners running Exxon, or other regional brand, and getting the smell. Let's just say I am now aware and not pissed.

 

mobil and shell i have always said made a very strong sulfur smell

 

I'm switched to 87 Amaco and it has reduced the smell tenfold.