Post by
Eikon »
https://forums.nicoclub.com/eikon-u15727.html
Sat Jan 20, 2007 7:47 am
Welcome to NICO!!!
My understanding is that all gasoline contains some sulfer. Higher grades are supposed to be scrubbed better to remove it, but it's not always true. The newer vehicles have different compounds used in the catalytic converters.. some including nickel. The exhaust and unburned gas that travels through the converter reacts with the nickel and other materials and even though the emissions are cleaned up considerably, the sulfer smell is a common byproduct.
I would suggest trying another brand of gas until you find a mix that doesn't react in that way. If you are really determined, you could look into alternative exhaust parts..
I'm not sure of the exact towing capacity of the xterra.. but I would assume at least 3500 lbs. Could be as much as 5000 lbs. Either way, you'll have no trouble pulling a small trailer.. boats, even a car behind you should be just fine.