I have never felt the need to offer warranties, I believe it invites continued additional grief, I'm willing to stand by my obilgations under the CRA and I tell my buyers that. When you specilaise in older high mileage motors, nearly every repair consitues wear n tear and Mr Customer needs to understand they have to take repsonsibility and ownership ..... If you prep right, PDI right, describe right, use the right stationary and be ultimately fair, you shoukld be OK. Knowing your obligations under the CRA is imperative.