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Multi-part question for the experts

Discussion in 'Gen 3 Prius Main Forum' started by nudriver, Aug 27, 2022.

  1. nudriver

    nudriver Member

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    1. What's the best shield to purchase on Amazon to protect the cat converter on my 2012?
    2. Is the location of the cat converter on the 2012 harder to steal from? My mechanic thinks so but I've read they steal from 10 yrs worth of Prius's.
    3. What's the best cheap 540 oil (synthetic?) to use in my 2012?
    4. What do I do about a burned out driver's side headlamp? Is this something that a mechanic has to fix?
     
  2. douglasjre

    douglasjre Senior Member

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    1. Not sure 2. No. 3. Rotella 4. No. YouTube is seminars on demand
     
  3. ToyXW

    ToyXW Active Member

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    The stainless steel Miller cat shield is probably the hardest to cut, but it only blocks the front of the cat. Various aluminum off-brands sell for about half the price and also come with a rear piece that thieves would have to cut to have room to maneuver the cat down after cutting the exhaust pipe.

    Really neither type of shield is super secure, they just add time & hassle to the theft which hopefully convinces the thief to pick an easier target.

    No, but I'm told the 2004-2009 prius cats are apparently more valuable than 2010-2015. You can see youtube videos of people passing by gen3's to steal from a gen2...
    The folks on Bobistheoilguy seem to be happy with Supertech/Amazon Basics/Kirkland Signature (all made by Warren).
    No, you can fix it. H11 bulbs only last like 100-200 hours so you should carry spares in the glovebox. Maybe some bandaids too if you tend to scratch your arms easily like me...
     
  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Rotella may be the cheapest 5W-40 oil to purchase, but it isn't a great choice for a Prius unless you are absolutely positive that it isn't burning oil.

    The extra zinc additives in Rotella will poison the catalyst over time. It seems counterproductive to put armor over a cat when you're setting yourself up for early replacement anyway.

    If the car is not burning oil there is less concern, but most people don't ask about heavier oil until there is already a consumption issue...
     
  5. Tombukt2

    Tombukt2 Senior Member

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    I try to 5:40 I think it might have been the mobile one seemed okay but it seemed like it's a little heavy for the car The car will get to a temperature that'll allow the oil I guess to become the 40 weight and then the 12 or the Gen 3 is looking for 5 20.. and I imagine in super cold climates you could go zero 10 or 0 20. During the extreme cold only. I mean I come from the days where heavy or engine oil was better Long time ago when these oils started coming out in these 20 weights and all that nonsense for being used in the summer time a year round or whatever yeah I was kind of hard to get into that groove that's water weight.
     
    #5 Tombukt2, Aug 27, 2022
    Last edited by a moderator: Aug 27, 2022
  6. PriusCamper

    PriusCamper Senior Member

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    1) Cheapest one you can find, it's a deterrent, not a product that offers better performance if you spend more.

    2) Yes, it takes longer to steal, Gen2 is low hanging fruit, Gen3 is a little bit more out of reach, but where you park your car is what primarily defines risk.

    3) 0W-20 is recommended for Gen3 Prius and there's no such thing as "best" synthetic oil because there may be a hundred labels to choose from, there's only a few refineries that produce it.

    4) Depends on what type of headlight you have. Plenty of youtube videos that will show you how to fix it.
     
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  7. nudriver

    nudriver Member

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    Okay so I went to the auto parts store and bought a bulb for my headlamp. It was Sylvania about 20 bucks the cheapest one they had. The guy installs it and it’s dimmer than my 10 year old original bulb in the other headlamp. What’s going on there? Also people were saying something here about using gloves when you touch those bulbs and the guy who installed it did not. Could that be the cause?
     
  8. ToyXW

    ToyXW Active Member

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    It isn't dimmer because the guy didn't use gloves, but it may burn out faster if he touched the glass part of the bulb and got oils from his hand on it.

    The cheapest Slyvania bulbs are the dimmest, but they last the longest. The most expensive ones are brighter, but last the fewest hours.
     
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  9. PriusCamper

    PriusCamper Senior Member

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    You can clean the oils off easily, but in general this is primarily a shattering risk for non-automotive halogen bulbs as the halogen headlight bulbs use much thicker glass than higher risk thinner glass halogen bulbs in your lamps at home.
     
  10. rjparker

    rjparker Tu Humilde Sirviente

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    The dimmest part was a result of buying the cheapest.
     
  11. Tombukt2

    Tombukt2 Senior Member

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    Beamtech S1 series fan less LED. Done ...bright .. lasts long time .
     
  12. Grit

    Grit Senior Member

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    Where do you get your oil change by the way?