Pre-ignition Pre-ignition Pre-ignition (or preignition) in a spark-ignition engine is a technically different phenomenon from engine knocking, and describes the event wherein the air/fuel mixture in the cylinder ignites before the spark plug fires. Pre-ignition is initiated by an ignition source other than the spark, such as hot spots in the combustion chamber, a spark plug that runs too hot for the application, or carbonaceous deposits in the combustion chamber heated to incandescence by previous engine combustion events. The phenomenon is also referred to as 'after-run', or 'run-on' or sometimes dieseling, when it causes the engine to carry on running after
Ignition (The Offspring album) reviews in the years since its initial release, with several reviewers having deemed "Ignition" one of The Offspring's best albums. In October 2011, the album was ranked number two (between Alice in Chains' "Dirt" and Bad Religion's "Generator") on "Guitar World" magazine's top ten list of guitar albums of 1992. On June 17, 2008, Epitaph re-released "Ignition" (along with "Smash") in remastered form. This reissue was released on the same day as then-current album "Rise and Fall, Rage and Grace". The Offspring toured for a-year-and-a-half to promote "Ignition". Their audience continued to hone, supporting such bands as Youth Brigade, The