The „Electronic Valve Protector“ additive injection system

The LPG-powered Focus ST already had „LPG-proof“ valve seats, but cylinder compression was declining since they were changed (they were adjusted to -Spinal Tap like- „11“ on all five cylinders).

PB110532 2010-07-27_Kompressionsdiagramm

As these engines are turbocharged, the old school „Flashlube Valve Saver“ would not be of much use – it relies on the vacuum in the intake of naturally aspirated engines (if I am not totally wrong it was invented to serve lead substitute zu oldtimer engines long before LPG became popular). Something with a pump needed to be installed. (mehr …)