I asked BP, who advised me that BP Ultimate Diesel no longer contains a cetane improver. It used to but it no longer does.
The current specification for BP Ultimate Diesel is for a minimum cetane of 46, though the typical value is usually around the 52 mark. The BP Ultimate Diesel contains both detergent and antifoam additives but in previous formulations it also contained a cetane improver which it no longer does. The reference to a 50 minimum would have referred to this earlier product formulation and is not current.
So there, there are no premium diesel products on the market in Australia and nothing that meets the 51CN VAG/EN590 specification for DPF-equipped vehicles.
2015 Polo Comfortline 6M + Driving Comfort Package
2011/11 Yeti 103 TDI 6M + Columbus media centre/satnav
(2008 MY09 Polo 9N3 TDI retired hurt hail damage)
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