The Collaborative International Dictionary of English v.0.48:

Kiloliter \Kil"o*li`ter\, Kilolitre \Kil"o*li`tre\, n. [F.
   kilolitre. See Kilogram, and Liter.]
   A measure of capacity equal to a cubic meter, or a thousand
   liters. It is equivalent to 35.315 cubic feet, and to 220.04
   imperial gallons, or 264.18 American gallons of 321 cubic
   inches.
   [Webster 1913 Suppl.] Kilometer

WordNet (r) 3.0 (2006):

kilolitre
    n 1: a metric unit of volume or capacity equal to 1000 liters
         [syn: kiloliter, kilolitre, cubic meter, cubic
         metre]