The ignition of n-decane in air has been studied experimentally at temperatures between 800 and 1300 K and at pressures up to 80 atm. The experiments have been carried out in a preheated shock tube. Ignition delay times of stoichiometric and lean mixtures of n-decane and air have been measured behind reflected shock waves. The experimental data have been compared with four kinetic mechanisms. Differences between the experimental data and the modeling results are discussed. (C) 2007 The Combustion Institute. Published by Elsevier Inc. All rights reserved.