i am going to buy a used wrangler to drive to work. i drive 10 miles on interstate highway,10 miles on curvy mountain blacktop, and 7 miles of rough 4wheel drive mountain road.i am familiar with the old 258 6 cyl. that i had in my old 76 cj5. i dont know much about the 4 cyl engine that is in the newer wranglers. any help or advice would be appreicated. the jeep that i buy will be subjected to rough, muddy, steep, rocky conditions 6 days a week. (this is just 1 way!) will a 4cyl hold up to this kind of abuse or should i get a 6cyl.? thank you.

78 F-250 4x4 that I bought new, 76 CJ5 I should never have sold. 00 F-250 4x4, 95 Wrangler, Caterpillar 777C off road mining truck that I drive for a living.