It is going to be 30 years since Tufoil was introduced into the American market.
Tufoil will not clog oil filters or oil galleries. To understand this better, it is recommended that you visit ACE HARDWARE stores in Mid Valley, Ikano or Melawati where the videos are shown round- the -clock.You can take a Tufoil leaflet home too.
Tufoil is known the world over as a serious product. It is not a gimmick.