AccuPlus is an additive injector used to accurately measure additives into a mainstream product such as gasoline, diesel, and heating oil. The flexible configuration allows single or multiple additives to be measured through a common meter using a manifold platform. The AccuPlus is a positive displacement meter designed with high resolution electronics that provide dependable injections over a wide range of PPM rates. Some applications may include injection of fuel performance additives, markers and dyes, cold flow enhancers and liquid fertilizers, etc.