About
Michael Grayen is an SAE certified mechanic and Technical Writer. A resident expert and professional, Mike is passionate about all things technical and loves to share his knowledge. When not at work you can probably find him working on yet another ambitious project. His articles and write-ups cover everything from routine maintenance to performance and styling modifications. Follow him on Facebook and Twitter. You need your vehicle to be up and running, even more so when the rig in question is a semi truck. You can trust Michael’s expertise in truck servicing and fixing.