its all about the angle that you use when cleaning the radiator. at my shop we use pressure washers and a solvent to clean rads and we inspect for bent fins first then blast it at a direct 90* angle to prevent the fins from bending.
good job on noticing.
Last edited by kornfanjoe; 05-07-2012 at 10:16 PM.
Reason: typical monday typo, wrote 45* instead of 90*