Professional EGR Cleaning Resources

I recently spoke with a Prius mechanic and that's what he works on: Prii. He's not located in my area. Anyway, I asked him about EGR cleaning and all the other bits involved as well for my Prius that has less than 40K miles.

He said, "I would not consider cleaning the egr until 100k miles. The last 2 EGR cleanings I did (both in 130k range) were dirty, but neither was close to being clogged. They both could have easily gone 150k miles before their cleaning. No, you do not have to clean the EGR every 50K miles, that's not necessary IMO."

 

it shows how varied the experiences are

 

Good insight here. My Prius is 160k. Just cleaned it for the first time. Considering buying an ultrasonic cleaner to really get is deep cleaned. Will keep this in my notes.