PITA is the appropriate word when dealing with the local distributor.
I've managed to get a few people at work (turbo-diesel owners) to move over to something better than "rimula X....the oil that protects" (great marketing) to Mobil Delvac 1, as they want their turbo diesels to run forever.
8 weeks later, and the depot still cannot source the stuff, as it's on backorder.
Delo 400 is where the potential customers have started heading in the interim.
Sprintman, BTW, I was told that the 0W-40 was ONLY available in 1 litre bottles, not the 5 litres.