DJZ Automotive is a trusted family owned automotive shop in Rancho Cucamonga with all ASE Certified Tech with 15+ years experience. We have been in business for 20+ years and have a great relationship with all of our customers. DJZ Automotive is a trusted family owned automotive shop in Rancho Cucamonga with all ASE Certified Tech with 15+ years experience. We have been in business for 20+ years and have a great relationship with all of our customers.