There are two types of liners: OEM (factory-installed) and Aftermarket (owner-installed). OEM liners generally last until the end of the manufacturer's warranty, and then the corrosion caused by ethanol, creeps under the liner and takes its toll. Aftermarket liners fail because most were not intended for use with ethanol and proper prep and installation is not possible as a DIY project. Between the two types, the removal process differs and is described below:
OEM Liner Removal - Harley-Davidson has lined their tanks since the mid 90’s and BMW has done it for decades. They are similar in nature and are both easily removed without affecting the paint, as long as the tank and its paint are in sound condition. Ultimately, this saves you from having to replace and/or repaint your gas tank and is only $149.
Aftermarket Liner Removal -
“Thanks for taking great care 100th Anniversary Fatboy, GTL rocks” Bill - Harley Owner