Is STP A Good Brand For our Car?

Like for treatments for your car?

How about Gunk or Gumout?

2 Answers

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  • 8 years ago
    Favorite Answer

    If you use good oil, you shouldn't need any additives.

  • 8 years ago

    Stp is terrible for you engine!!! Don't ever use an oil additive!! As for fuel, seafoam, techron, or redline is the best in my research.

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