I took my buddy's 2006 Prius w/85k to the local shop this morning for an alignment. During the pre-alignment inspection, they found that the front struts are starting to seep. I would describe the seepage to be moderate and to only cover the area above the spring seat. The "Grade 4" shown in this TSB best describes the condition of the front struts: http://www.etimago.com/yaris/TSB/TS-SU007-06(Shock Absorber Replacement ).pdf According to this bulletin, moderate seepage from the struts is normal. The tech personally showed me the seepage, so I know the shop isn't lying to me and is trying to upsell struts. The seepage is not the typical light film of oil that you see on struts-- it is definitely a heavier layer of oil that has escaped. I was taught that struts should be replaced at the first sign of leakage, but this bulletin is saying otherwise. I am not sure if the purpose of this bulletin was to help Toyota reduce warranty expense by forcing owners to wait until they are dangerously bad (and hopefully by then, they will be out of warranty), or is it actually pointless to replace struts until they have are leaking profusely. What do you guys think?