If you are referring to the re-installtion of the oil pan bolts it is most likely in inch pounds. If you try to apply 85lbs/ft of torque to those bolts you will surely strip the shit out of the threads and/or snap the bolts.
Inch pound torque wrenches are common. Sears should have them. If not check Lowe's, they had some on sale a couple of weeks ago.
You could convert by dividing by 12. But, 85 divided by 12 is only about 7lbs/ft and good luck finding a foot pound torque wrench that will register that low.