In 2002 Shell bought Pennzoil and Quaker State. Quaker State owned Slick 50. Shell tried to sell Slick 50 but got no takers. They then reformulated it removing the Teflon. It now does no harm but does not help either.
2014 Harley Sportster 883 Superlow
hexnuts...a curse put on your balls by a mean gypsy
3/5 Cav, C Troop, BlackKnights, Vietnam 1969