john d 
2002 Nissan Frontier Crew Cab 4dr Crew Cab XE-V6 2WD SB (3.3L 6cyl 5M)
Little truck, lotta truck !
 I use the truck primarily to tow a 3000 lb camper.  The 3.3 L engine in the 2002 was rated at only 170 hp but this little truck seems to use all of them as it tows the camper plus another 500 lbs of camping gear as though it is not there.  That is both with power and mileage. The camper and gear doubles the weight of the truck alone with no more than a 15-20 % increase in fuel consumption. For power I'm comparing it to my old Ford full-size with a 351 V-8.  Never any maintenance in nearly 8 years of use other than regular preventative maintenance.  Cannot recommend this little truck too much!!