Toyota Engine Oil

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by gen2prius, Aug 11, 2022.

  1. gen2prius

    gen2prius Member

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    That's a good tip, thank you.
     
  2. gen2prius

    gen2prius Member

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    Finally did another oil change, I know should have done it sooner. 13,000km or 8,000mi over 3 years.

    Indeed the previous washer was present, the second washer also stuck on there. This time I'm 100% sure because I put one there last time.

    Using an open ended wrench did the trick, sort of pry from the centre.

    washers.jpg
     
  3. gen2prius

    gen2prius Member

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    Used an oil extractor this time, the manual version, it was quick and easy even without an air compressor.

    It was able to extract 3L of oil through the dip stick tube. Probably can do more if the front wheels weren't on ramps. No oil came out from the drain hole, so it is not less effective than draining.

    Such a blessing for cars with top mounted oil filters, still great help for Prius.
     
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  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Did what trick, breaking loosen the old washer? I find a slim, flat-bladed screw driver blade, tapped in with a hammer, jars it loose. Typically do that as soon as the drain bolt is backed out a few turns, less messy.

    removing drain bolt and using an oil extractor seems a little belts-and-braces. Still, interesting experiment, seeing how thorough it was. If anything having the front raised should improve drain, due to drain bolt being at trailing edge of oil pan.

    myself, I’ve made it this far just removing drain bolts on cars, so I’ll stick with that. I can see it being very handy though, say for partially extraction, due to overfill.
     
    #24 Mendel Leisk, Oct 1, 2025 at 7:44 AM
    Last edited: Oct 1, 2025 at 2:20 PM
  5. PriusCamper

    PriusCamper Senior Member

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    Anyone got any tips on where to buy a bunch of oil plug washers for Gen2 and Gen3?
     
  6. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Our dealership used to charge about $2 CDN per. Last time they just threw it in without mention, change in policy I guess. Their Mazda dealership (right next door) has adopted the same policy. The two locations are handy; I typically park at the Mazda dealership (better odds of finding a spot), pick up oil filter for son's Mazda, then 'round the corner to Toyota for our Prius. Oh, and next to the Toyota place, Lexus, all under the same umbrella.

    upload_2025-10-1_11-30-12.png
     
    #26 Mendel Leisk, Oct 1, 2025 at 2:25 PM
    Last edited: Oct 1, 2025 at 2:31 PM
  7. Prius_Gnome

    Prius_Gnome Member

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    You're looking for Part # 90430-12031
    Toyota MSRP is $1.64 as of today - Gasket #9043012031 | Autoparts.toyota.com
    So that's like $16.40 for 10 gaskets.

    If you do an internet search for "Toyota 90430-12031", you'll get a bunch of hits on 10-packs for slightly cheaper (maybe $10-ish). Those items' pics show the plastic bags with official looking Toyota logos (which look like the bag that I purchased when I bought a bunch during a Toyota sale).
    If you don't care about using genuine Toyota parts, I'm sure you can opt for the much cheaper generic stuff that pops up in the search.
     

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  8. Mendel Leisk

    Mendel Leisk MMX GEN III

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    I got one of those aftermarket packs one time, they had shards on the edges, looked rough. I returned them, not worth the suspense.
     
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  9. ColoradoBoo

    ColoradoBoo Senior Member

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    I just buy a stack of the blue Lexus/Toyota oil plug washers off Amazon...probably due to restock since I change so many vehicles these days..$6.99 for 24 of them so that's just 30 cents each.

     
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  10. gen2prius

    gen2prius Member

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    Yeah to get the old washers unstuck. I tried using a plastic scraper, then moved up to a flat screw driver without too much force, unsuccessfully. Guess was being overly cautious. Using a small screw driver to pry from the centre would have the same effect as the wrench, but wrench is easier to leverage.

    Did that for two reasons, one was to see how much oil remaining, if any. Two was to remove the double washers from last time.
     
    #30 gen2prius, Oct 1, 2025 at 6:44 PM
    Last edited: Oct 1, 2025 at 7:02 PM
  11. pasadena_commut

    pasadena_commut Senior Member

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    For stuck washers I use an old/dull flat blade screwdriver, and try to place it on the edge of the washer above the metal so that it won't scrape when it moves. Flat of blade parallel to the metal surface. Push on the washer lightly with the screwdriver until it grips and then with one finger underneath apply a tiny bit of outward (with respect to the metal) force. Usually the screwdriver hangs up on the washer and doesn't actually move at that point, but it is primed to. Finally a very light tap with a hammer or the side of a wrench with the other hand on the back of the screwdriver and the washer always flies off while the tip of the screwdriver moves away from the metal at the same time due to that preexisting force.

    It is amazing how little impulse is needed to remove a washer this way, whereas pushing on it with a finger almost never makes the washer release.
     
  12. gen2prius

    gen2prius Member

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    May be it's the felt like coating makes it stick. Never experienced this using crush washers, the kind that deforms after tightening.
     
  13. gen2prius

    gen2prius Member

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    Will continue with the extraction method, so there is no need to touch the drain bolt or to replace the washer. Not 100% sure if the ramps actually helped to get more oil out, the drive way is in a bit of decline, so it offsets the ramps some what, will use a level next time to see what angle the car is at.

    Definitely less mess, I have spilled oil before due to catch pan was not positioned correctly. End up spent more time cleaning the pavers than the oil change itself. Will still need to replace the oil filter, but less oil and much easier to catch.

    [​IMG]
     
    #33 gen2prius, Oct 1, 2025 at 7:25 PM
    Last edited: Oct 1, 2025 at 7:38 PM
  14. PriusCamper

    PriusCamper Senior Member

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    So what do you open up on top to access the oil? The dipstick hole? Such a tiny hole must take a long time?
     
  15. gen2prius

    gen2prius Member

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    Yes, through the dip stick, make sure the tube has reached the bottom, you can feel it. It was surprisingly quick, may be 5 minutes tops. Pumped for about 10 times to get the oil flowing, then it just kept on flowing until the very end, pumped a few more times to finish it off.

    [​IMG]
     
    #35 gen2prius, Oct 1, 2025 at 7:48 PM
    Last edited: Oct 1, 2025 at 7:54 PM