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BP Ultimate meets the requirements of the Western Australian Environment Protection (Diesel and Petrol) regulations of 1999.
It has lower contents of benzene (50% reduction) and sulphur (90% reduction) than Lead Replacement Petrol and unleaded petrol.
The additives in BP Ultimate will ensure that engine efficiency is maintained by keeping the engine clean ensuring no deterioration of exhaust
emissions during the life of the engine.
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I think the change in smell has more to do with what's been reduced compared to what people think has been added...