Automation of CFR laboratory octane test engines thanks to Lawler Manufacturing is now available! Fully compliant with ASTM D2699, D2700, 2885 and D613 test method protocol (including procedures A, B, & C); there is NO modification to the CFR engine as required with competitive systems. On-the-fly switching from automated to manual operation is done by a simple turn of the fuel selector valve and a single electrical switch!