Only bp and Amoco gasolines have Invigorate, bp’s exclusive proprietary detergent additive. Invigorate contains active molecules that start cleaning and protecting your engine as soon as you start the engine. All grades of bp and Amoco gasolines with Invigorate go above and beyond US government minimum detergent standards to provide our customers the benefits they are looking for. Engine cleanliness is important because dirty deposits from minimum detergent fuels form in engines and can lead to a variety of problems—hesitation, rough starts, loss in fuel economy, and increased emissions, to name a few.*
*Engine cleanliness based on ASTM D6201 engine testing. Optimizes your engine’s performance from the harmful effects of deposits caused by minimum detergent fuels. Comparison made for fuels with the same ethanol content.  With continuous use, depending on what you drive and how you drive.