2001 Nissan Pathfinder SE 4WD 4dr SUV (3.5L 6cyl 5M)
If you read the owner's manual, you
will see that Premium fuel is defined
by the Octane rating. The Premium
fuel it recommends is usually the
middle grade at most gas stations.
This is important to know as my
Pathfinder averages only 14.5 mpg.
That's my only complaint though, so
overall I'm happy.