Vehicle Service Bulletins

Chek-Chart publishes the Quick Lubrication Guide and Automatic Transmission and Gearbox Fluid Service Guides. In addition to the annual publications, Chek-Chart releases information bulletins containing timely corrections and clarifications. We post select bulletins here on our site by category for your convenience along with bulletins from ISI and vendors that are important for servicing motor vehicles.


Motor Specifications Bulletin – April 6, 2016Download PDF »




TSB CH10515 & CA10661 Oil Filter Notice – June 21, 2017Download PDF »

TSB VO-105 Oil Filter Notice – January 4, 2017Download PDF »

05 GMC Yukon Denali Incorrect Oil Filter – July 1, 2016Download PDF »

Valvoline TSB – February 4, 2016Download PDF »

POF4612 PrimeGuard Spin-on Oil Filter – February 3, 2016Download PDF »

POF5436 Prime Guard Cartridge Oil Filter – February 3, 2016Download PDF »

Service Champ Oil Filter Notice – November 5, 2015   Download PDF »

Toyota Oil Filter Notice – February 14, 2007   Download PDF »


MOTOR Specifications Info Bulletin – August 2, 2010    Download PDF »

Service Intervals