The primary reason you don't want aluminum in your house is that homegamers will improperly do repairs, primarily replacing devices (receptacles, switches) with

The primary reason you don't want aluminum in your house is that homegamers will improperly do repairs, primarily replacing devices (receptacles, switches) with ones that are not rated CO/ALR rated. I doubt that failure will be as likely in the cars. Properly terminated, there is no problem with aluminum wiring in your house. As another replier mentioned, most houses do have aluminum wiring in the run to the house and the run from the meter to the panel, and sometimes in the larger runs like stove and dryer. It's also worth noting that the newer aluminum formulas like Southwire SIMpul, are not like the old aluminum like was installed in my house in the early '70s. But, buyers are still gunshy from the '70s, so copper is generally preferred