What will happen if I don't change the engine oil straight away?

I have a two year old Citroen Relay van (2.0 diesel). It had an oil and air filter change a year ago at 4000 miles. It's now done another 4000 miles and a change oil warning light comes on at the start of each journey. I'm on the garage's waiting list for the van to be serviced. The van handbook is light on detail. Can you tell me if the van will go into limp home mode at some point as I have no idea when I will be able to get it serviced?

Asked on 4 June 2020 by Faye

Answered by Dan Powell
The oil and filter should be changed every 12 months or 12,000 miles (whichever comes first). It shouldn't go into limp home mode, but the old oil might increase general wear and tear due to fact it will lose its lubricity over time.
Similar questions
I purchased a 2008 Vauxhall Corsa 1.2 recently. Today it drove fine, but after an hour of driving I stopped to go to the shop and when I came back and started it the engine oil light came on for a minute...
We had the emissions fix done in our SEAT Ibiza 1.6 in January 2017, but - with 55,000 miles on the clock - it has just had to back to dealership with an engine block warning light and flashing coil light....
Our 2013 Volkswagen Tiguan 2.0 diesel had the emissions fix five weeks ago. Last week, it went into limp mode and the dashboard lit up like a Christmas tree. I took it back to Volkswagen. After they had...
Related models
One of the largest vans in its class, wide choice of wheelbases and heights, punchy engines, suited to heavy work and towing, comfortable ride and good handling.

Value my car