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  1. #1
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    Can car wash shampoo be diluted to a rinseless wash?

    Hello,

    I am wondering if anyone has information or experiences to share regarding diluting car wash shampoo to a rinse less wash? Is this possible, or are there issues?

    I realize car wash shampoos almost surely have less lubricity then a rinseless wash. But perhaps this can be remedied by diluting to a lower ratio (1:1 being the extreme, and admittedly unpractical example).
    • I don't know if a lower ratio dilution actually affects lubricity though.


    Another problem is maybe the thickness of car wash shampoos -- in my experience these tend to be thicker than their rinseless counterparts, and hence don't dissolve easily when diluted.

  2. #2
    Super Member acuRAS82's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    Car wash shampoos leave surfactants or suds behind. They are meant to be rinsed with water. I wouldn’t try this. Someone else had a similar thread awhile back. If you search you might be able to find and see what else was discussed.

    But my suggestion is to spend another $10-20 and get a dedicated Rinseless. Or risk soapy film being left on your car, dulling the surface.

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  4. #3
    Super Member Desertnate's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    Quote Originally Posted by acuRAS82 View Post
    Car wash shampoos leave surfactants or suds behind. They are meant to be rinsed with water. I wouldn’t try this. Someone else had a similar thread awhile back. If you search you might be able to find and see what else was discussed.

    But my suggestion is to spend another $10-20 and get a dedicated Rinseless. Or risk soapy film being left on your car, dulling the surface.
    To take it one stop further, there are some products on the market like CarPro's Ech2O which can be diluted to be a rinsless wash, waterless wash, or quick detailer depending on the ratios. They are highly economical this way since bottle of concentrate will last a long time and also replace multiple products all at once.
    Drop by to see the latest at The Car Geek Blog

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  6. #4
    Super Member bfielder32087's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    I've heard P&S Pearl can be diluted to use as a RW. I've never used it at all so I can't speak to it. Just remember there being some talk about it.

    For me personally though there's so many quality RW options out there that I'd rather use a dedicated product.

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  7. #5
    Super Member WillSports3's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    I would not do it.
    2016 Mazda 3 Sports GT
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  8. #6
    Super Member oneheadlite's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    Interesting thought exercise, but I'm with the other folks - I'd just pick up a dedicated rinseless as there are so many good options to choose from.

    On top of leftover soap dulling the appearance, I'd also worry that not rinsing a traditional soap off would leave you with a similar situation to not getting all the shampoo rinsed out of the carpet - it ends up actually getting dirty faster as the detergents react to all the dirt they encounter.

    While not likely, I'm picturing a car self-foaming in a parking lot during a hard rain.

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  10. #7
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    Quote Originally Posted by acuRAS82 View Post
    Car wash shampoos leave surfactants or suds behind. They are meant to be rinsed with water. I wouldn’t try this. Someone else had a similar thread awhile back. If you search you might be able to find and see what else was discussed.

    But my suggestion is to spend another $10-20 and get a dedicated Rinseless. Or risk soapy film being left on your car, dulling the surface.
    This is pretty obvious in hindsight now, but I didn't put two and two together. Thanks.

  11. #8
    Super Member acuRAS82's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    Quote Originally Posted by oneheadlite View Post
    While not likely, I'm picturing a car self-foaming in a parking lot during a hard rain.
    This would be the coolest thing ever.

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  13. #9
    Super Member Dereksdtail's Avatar
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    I’ve used pearl for both traditional and rinseless, I like it for when I have to wash in direct sun, good stuff!


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  14. #10
    Mike Phillips
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    Re: Can car wash shampoo be diluted to a rinseless wash?

    There a so many great rinseless washes available - I'd suggest what these guys suggested...



    Quote Originally Posted by acuRAS82 View Post

    But my suggestion is to spend another $10-20 and get a dedicated Rinseless.


    Quote Originally Posted by bfielder32087 View Post

    For me personally though there's so many quality RW options out there that I'd rather use a dedicated product.

    Then do this,





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