150,000 Mile Transmission Fluid Change (results)

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by morpheusx, May 18, 2013.

  1. morpheusx

    morpheusx Professor Chaos

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    I know a lot of people are still interested in this and the importance of changing the so called "lifetime" fluid. First a quick history. I of course am the original owner of my 2007 Prius and I am just about to hit 150,000 miles. I previously changed the transmission fluid when I was at 59,000 miles based on many peoples advice here on priuschat back in August of 2009 (yes I keep my record book up to date). That fluid back then was really dark and the magnet was full of debris however I have done my fair share of car maintenance and I have seen much worse before. Also I was thinking much of the darkness and debris on the magnet was likely from being new and breaking in. So I decided the next time I change it I'd extend it out an extra 50% to 90,000 miles on the new oil. So here I am at 149,000+ miles and here are the pictures of the old that came out. I'm way too cheap to bother with a laboratory analysis, but I do believe that based on the color anyway that 60,000 a much more appropriate interval for those of us that live in a cold weather state.

    Anyway for anyone that cares what the fluid looks like on a second change with 90,000 miles on the fluid and 149,000 on the ODO here are some attached photos.
    1d1c62bd-a9c2-4653-b519-6c344e90ab6f.jpg e5cd2236-c991-4157-8994-0e04c46fc434.jpg
     
    Dino33ca likes this.
  2. Silver bullit

    Silver bullit Right Lane Cruiser

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    Thanks for posting. I can't see any difference between the two containers.
     
  3. morpheusx

    morpheusx Professor Chaos

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    its the same container, same fluid just one picture is a bit closer. Sorry for the confusion.
     
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