On cleaning engines.. I generaly find the local car wash.. listen to the radio a bit while letting the engine cool down.. Then spray it with simple green an let it soak for 5 mins or so tops.. then spray it off with the high pressure washer.. Works like a champ..

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- Josh
'01 SuperBlack XE 4x4 V6
Utah Xterras -
http://www.prowlerz.net/xterra/