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  1. ... would pass on the stp , or the foamalizer lucas crud.... just use regular engine oil and be fine. Stp is just a thick oil add, with the cheap anti wear additive zinc..... nothing special...

    12 Answers · Cars & Transportation · 08/08/2006

  2. ... additives are not good for catalytic converters. the STP oil treatment is for cars with high friction flat tappet cams... they don't...

    5 Answers · Cars & Transportation · 11/04/2016

  3. The only oil additives needed have been included in the gasoline...and is used to give additional emulsification properties to engine oil that enable it to remove heavy deposits of crud. You can run this stuff...

    4 Answers · Cars & Transportation · 04/09/2013

  4. Neither. If you want your oil pump to force the greatest volume of oil to frictional surfaces quickly...

    6 Answers · Cars & Transportation · 29/10/2009

  5. Stp makes a 10w-30 engine oil around a 15w-40..... contains cheap volume index .... Valvolines synpower or maxlife oil treatment 's actually contain alot of the other antiwear additives...

    20 Answers · Cars & Transportation · 08/08/2006

  6. ... WORTH THE MONEY!!! You do not need oil additives...., use a good synthetic oil ...

    4 Answers · Cars & Transportation · 08/01/2007

  7. ... so it clings longer than oil by itself would. I found stp to "hold" dirt. Lucas seems to be the best treatment I have found for high mileage motors...

    13 Answers · Cars & Transportation · 05/03/2008

  8. Your engine doesn't need anything except plain ol oil . I don't know why people buy that nonsense stuff. Acting up how...

    6 Answers · Cars & Transportation · 08/10/2013

  9. ... hard to estimate. it'll probably blow up at the most inconvenient time for you. STP treatment is great for small oil leaks, but i don't think it'll help with a rod knock. i would check...

    4 Answers · Cars & Transportation · 18/05/2009

  10. STP contains ingredients that swell the gaskets and the clutch plate material in the transmission. It does work for a while with varying degrees of success.

    10 Answers · Cars & Transportation · 26/02/2009

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