In this video I test Royal Purple Max Clean Fuel System Cleaner in a Ford Explorer. I use a borescope camera to look into the engine and see how dirty the engine is before the fuel treatment and then after the fuel treatment. This is the first time I looked at intake runners and valves, and I also looked at the piston head.
I followed the instructions on the container and Royal Purple did clean some carbon off the intake runners, valves, and piston heads. This is the best in fuel system cleaner I have used that goes in the gas (so far)
Here is the fuel cleaner I used: http://www.amazon.com/gp/product/B00B1VBQRS/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00B1VBQRS&linkCode=as2&tag=chri0e2-20&linkId=FQMBFE4BPRUPHOAU
Here is the borescope camera I used: https://amzn.to/2S5tNcX
Seafoam in Car: https://www.youtube.com/watch?v=u6UeJXkzDW8
Seafoam in a Lawn Mower https://www.youtube.com/watch?v=WdT4DPFXIkM
Here is the Techron Test: https://www.youtube.com/watch?v=h8i9qftqKNY
Gumout "all in one" fuel system cleaner test: https://www.youtube.com/watch?v=5SoZnymBSC8
Lucas Fuel System Cleaner test: https://www.youtube.com/watch?v=FLhXqgEEYyI
CleanBoost Maxx Test: https://www.youtube.com/watch?v=VDUogAQzLAc
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14 thoughts on “Does royal purple fuel max cleaner actually work with proof ?”
  1. Avataaar/Circle Created with python_avatars Thomas Mobley says:

    Now I'm not your mechanic, but if I were and you said you think just tossing one dose of anything into a carbon fouled engine is going to help very much I'd tell you you're wrong and you'd probably do it anyway. One dose isn't going to do squat, this is the kind of thing you have to use regularly to get any effect from, and while I have no doubt it's effective at some level used as a maintenance routine the real question is does the effect justify the cost, is the squeeze worth the juice. This stuff goes for $12 for 20 oz, I drive 3 hours a day 3 days a week to work, if I put this in every fill-up that's $24 a week, $1,248 a year. If I just use it on oil changes I changed my oil 5 times last year, that's $60 a year. Will using this every fill-up make my car last enough longer and get enough better gas mileage that it's worth $1,248 a year? I'm going to lay out an unscientific guess and say that's not likely. Will my engine lifetime and gas savings be worth $60 a year? I'm guessing at best there is a possibility there could be value there but at best the value would be nominal to minimal even on a single year basis, as in 10 years after you bought your car and put a bottle of this in every oil change you saved $65 this year in gas over what it would have cost you if you hadn't spent $600 over the last 10 years putting this in your gas.

  2. Avataaar/Circle Created with python_avatars JP says:

    Pro tip: add a quart of used cooking oil to your gasoline once per month. The dirtier, the better. Helps get rid of pesky warranties.

  3. Avataaar/Circle Created with python_avatars Gary Holiday says:

    What's happening when you hear rattling in the tank and vibration? I have GMC Sierra 2014 . I want to do everything I can before I commit to putting it in the shop, I'm on a budget

  4. Avataaar/Circle Created with python_avatars Ohso_loso says:

    I used the royal purple along with the seafoam concentrated that looks like the lucas one worked extremely well I dumped both in at the same time then filled up the tank idle smooth acceleration most definitely improved almost instantly and by the way my vehicle is an 04 explorer with the 4.0 v6 engine

  5. Avataaar/Circle Created with python_avatars NordicPride970 says:

    PEA isn’t a magic chemical. You just don’t understand how it works. You need to read up on it. Then you would know a maintenance dose is best backed by heavy/higher rpm freeway driving. REDLINE contains more PEA. Sea foam has none!

  6. Avataaar/Circle Created with python_avatars George Swan says:

    what about the walmart one supertech?

  7. Avataaar/Circle Created with python_avatars Al Zaidi says:

    I think an injector spray test would be more useful than a deposits condition. That affects power and efficiency more than deposits. Looks like it just moved valve carbon onto the piston.

    The only cleaner I actually saw overnight results with was Diesel Purge on a near empty tank. ( ie full strength ). The smoke cloud it made was proof of carbon removal!

  8. Avataaar/Circle Created with python_avatars Jungle Jim900 says:

    i think if you did 1 more treatment it would’ve got all that stuff out completely

  9. Avataaar/Circle Created with python_avatars Grumpy Seabee says:

    It would be interesting to see what a few tanks of treated fuel would do.

  10. Avataaar/Circle Created with python_avatars Matt Gaynor says:

    Please try vp race fuel cleaner id love to see that its what i usually use

  11. Avataaar/Circle Created with python_avatars Greg Bernal says:

    Well it clean EGR valve

  12. Avataaar/Circle Created with python_avatars crab apple says:

    have you done the test with water yet ?

  13. Avataaar/Circle Created with python_avatars A D A M says:

    do you think you can use this in the same way you used Seafoam in the lawn mower? meaning…. in a lawn mower?

  14. Avataaar/Circle Created with python_avatars David Bloomberg says:

    Obv not a GDI engine…..

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