Vivaro van service interval - 25k miles between oil changes?

[CIS121]

We've got a 2014 Vivaro van, the service interval is advertised by Vauxhall at 25,000 miles. Done 15k miles now and oil is black - presumably they must know what they're doing, but anyone had issues with sticking with a 25k service interval for oil changes?

[JRvaux]

I know this was asked a while ago but anyway. If the van is yours and not leased and you are going to keep it say past 100k miles then I would personally do another oil change in between at 12-13k. i drive vauxhall cars usually an estate and cover 30k a year. I double the recommended oil change and find my cars are still running really smooth at 200k.