bp Ultimate fuels

‘Dirt’ - harmful deposits - is a well-known problem in engines. It can accumulate over time under various driving conditions and can lead to reduced engine performance and other negative effects. 

Drivers might notice dirt affecting their engines. In diesel engines, a build-up of dirt in the fuel injectors restricts fuel flow, leading to a reduction in maximum engine power. The loss in power may be felt by drivers as vehicles may no longer accelerate as quickly as they could when new. In petrol engines, dirt build-up on the intake valves and fuel injectors can cause momentary hesitation or loss of responsiveness when accelerating. 

bp Ultimate Unleaded and bp Ultimate Diesel are specially formulated with our exclusive ACTIVE technology formula to remove existing dirt from critical engine components and protect against its build up. They start working from your first fill-up but for the best results should be used on an ongoing basis. 

Fuel economy tests were conducted on a range of used petrol and diesel vehicles representative of the UK parc. 

Fuel consumption was measured for each vehicle, then they were refuelled with bp Ultimate with ACTIVE technology. The fuel consumption of each vehicle was measured again.  

In our advertising, we communicate the fuel saving achieved with bp Ultimate with ACTIVE technology as an improved vehicle range per year, i.e. up to 375 more miles per year.**

**Claim is based on continuous use over 6400 miles per year (UK DFT). For Ultimate Unleaded compared to 95 octane petrol. For Ultimate Diesel based on engines tested in dirty vs. cleaned condition. Benefits may vary due to factors including vehicle, driving style and driving conditions.