There are few car problems more irritating than rodent damage. The car worked yesterday. Today it has warning lights, won’t start, or is suddenly throwing strange electrical errors. Then the mechanic calls and says the problem is not the battery, not the alternator, not some mysterious computer failure. Something chewed the wires. Once that happens, the obvious question is how to stop it from happening again. That is where rodent deterrent tape comes in. Sometimes called capsaicin tape, anti-rodent tape, or spicy wiring tape, it is meant to make vulnerable wires less appealing to chew. It can help. But it More…
Soy-Based Wiring and Rodents: Do Car Wires Really Attract Mice? March 19, 2026
If you search online about rodents damaging cars, you will quickly encounter a surprising explanation: modern vehicles supposedly use soy-based wiring insulation that attracts mice and rats. Some drivers claim rodents never bothered their vehicles until automakers started using “soy wires.” The theory appears frequently in repair forums and social media discussions whenever someone discovers chewed wiring under the hood. But how much of this claim is actually true? Do modern cars really use soy-based wiring, and is that why rodents chew through electrical harnesses? Like most things you read on the internet, while there are elements of truth, it’s More…