Originally Posted By: Ursae_Majoris
This study has been around for years.
I think that's the one that pretty much started elevating the awareness of how different filters are inside. It used to be hosted on minimopar.net, IIRC.
This is a problem of our times, there is so much information noise and propaganda, good information is diluted and lost. It's actually great that out new members rediscover the good info.
Originally Posted By: eljefino
I read that in, no fooling, 1999, and bought my first (STP) filter for my first OC for my first car based on its results.
Edit, the author gives the date in the opening paragraph:
Quote:
One weekend in early February of 1999
The 'STP' filter was on the 'not reccomended' list.....why did you buy it ???