I always learn a lot on this forum... thank you.
I'm curious if new cars use PTFE-lined fuel lines and if so, are they conductive? Is this only an aftermarket question?
The risk is real but how probable? Failure by static discharge may be improbable, but the consequences of a failure may justify the cost for you.
I'm certainly aware of explosion risk from static discharge (gas cans, tanker trucks, gas pumps, etc.) but I never thought about PTFE-lined hose leakage from static discharge damage being a significant issue in cars.
When we assessed risk for new product designs with hundreds of parts and ways to fail, we'd rank them using a simple formula (RPN). Risk Factor = probability of occurrence x consequences x ease of detection. If the consequences carried safety liability or regulatory failure, the design had to be changed and the cost to change was accepted.
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