"How Long Will Your Oil Last?"
Site Last Updated: 08-29-2019
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In fact, here are a few links to releases from the Federal Trade Commission with regard to the effectiveness of different oil additives. Each link opens in a new window. When finished reading each piece, simply close the window to return to this tour.
Valvoline Engine Treatment
Slick 50 Engine Treatment
STP Engine Treatment
Dura Lube Super Engine Treatment
Dura Lube Advanced Engine Treatment
Motor Up Engine Treatment
Prolong Super Lubricants
zMax Auto Additives
In short, the FTC releases above indicate that all of these companies have used deceptive advertising in order to mislead consumers into believing that their products offer advanced engine protection and performance over motor oil alone.
The truth is that not one of these companies has been able to offer any test results which prove conclusively that any benefit is gained from their products' use. AMSOIL, on the other hand, has 3 decades of test results and testimonials proving that their oils do exactly what the company says they do.
For more information about oil additives, see the following link: Oil Additives or Snakoil Additives?.