Riverside Porsche Repair – Oil Change Special Precision Motion – Expired Posted on July 22, 2015 by pmpwp Posted in Racing Porsche Special: $99 Oil Changes! Excludes Panamera and Cayenne. Expired in 2015 Call and make your appointment today! (909) 783-0425 Precision Motion Porsche Riverside Repair Shop Ask about the Porsche 996 Carrera and 986 Boxster IMS and Clutch Special! Riverside Porsche Repair serving the Inland Empire located in Colton near the 91, 215 and 60 Freeways!