Especially designed for "Pumpe-Düse" (unit injector or "PD" engines) running on fixed service intervals (15,000km / 12 months).
It is vitally important to use an oil meeting either this, the Audi (VW) 506.01 specification or the Audi (VW) 507.00 specification to avoid damaging the diesel pump in PD engines.
For PD engined cars with a DPF, use only an oil meeting the Audi(VW) 507.00 specification.