The idea is cold weather causes rubber lines to contract and leak,some things come to mind,why only with Subaru? is the leaking fuel visible? everyone knows cold equals contraction but why is this contraction accompained with leakage,why did Subaru not select a material that does not exibit this condition?
Really what comes to mind is, why is there not a recall related to this situation? it is a definite safety hazard.
Even with VW AFC fuel injection (one of the first) I didn’t see cold cause this and the fuel hose used on these cars leaked with the slightest stress put on it(very easily degraded by heat or just time)surely on a quality modern car such as Subaru they didn’t scrimp on fuel line quality. Obviously something is going on but a better explaniation than cold=leakage would be nice.This issue should be resolved at Subaru’s expense.