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  • How are reviewers describing this item?
    purple, great, better, good and royal.
  • Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
  • Our engine has analyzed and discovered that 48.8% of the reviews are reliable.
  • This product had a total of 401 reviews as of our last analysis date on Aug 9 2020.


Most positive reviewquestion

Not sure if it helps but royal purple is a great company and a bottle of this once in a while gives my gear shift a warm fuzzy.

Least positive reviewquestion

Not as good as Torco.

Most authentic reviewquestion

Every time I take my 2015 Kia Sorento to the dealership for an oil change they try to press me into buying fuel injection treat...  Read More

Least authentic reviewquestion


Helpful Insights


    Posted by a reviewer on Amazon

    Not as good as torco.

    Posted by a reviewer on Amazon

    Bottle was leaking upon arrival.

    Posted by a reviewer on Amazon

    This product does work, but it doesn't work as well as lucas.

    Posted by a reviewer on Amazon

    Or getting electrocuted by not doing something simple like disconnecting the battery before doing electrical work.

    Posted by a reviewer on Amazon

    Just pay someone if you're hesitant to do it yourself.

    Posted by a reviewer on Amazon

    The shake came back, not as bad as before, i have to check the fuel trims to make sure i have no vacuum leaks (doesn't look like it though), but i will use the product again, maybe as i'm coming closer to the end of the tank.

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