Is it permissible to roll back a car's odometer to a lower reading, such as 100,000 kilometers instead of 300,000 kilometers, while informing the buyer that the odometer has been tampered with and that the actual mileage is higher, in order to encourage the buyer?

Changing a car's odometer from 300,000 km to 100,000 km is considered deception to the buyer if it is not disclosed to him, because the mileage is a missing characteristic whose concealment is deceit. The sale is valid if it is disclosed to him and he accepts, but this alteration is impermissible because it cannot be undone, and the car may pass from one seller to another without its true condition being revealed. The burden of this sin falls upon whoever performed this act.