12 ms·
Yes - brought to you by the same people that would stop you from eating beef because cows fart. From a tech perspective tetraethyl lead also has lubricative pr
by roamerz 5y ago
Yes - brought to you by the same people that would stop you from eating beef because cows fart.
From a tech perspective tetraethyl lead also has lubricative properties that add to exhaust valve longevity under high temperature conditions which may be one of the reasons it took so long to disappear.
- nate_meurer 5y agoNo, this is a myth. In reality, lead fouling decreases engine performance and longevity. From https://www.shell.com/business-customers/aviation/aeroshell/knowledge-centre/technical-talk/techart-18-30071600.html https://www.shell.com/business-customers/aviation/aeroshell/...: "The temperature for Lead deposits to form tend to be favourable around the spark plugs (as the whole mixture is quite cool before the flame starts to propagate) and on the exhaust valve stem (as the mixture cools after combustion). The problem is that the deposits are electrically conductive, which shorts out the spark plug - and corrosive, which can start to attack the metal of the valve stems."