Is the engine oil light coming on a serious concern?

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 and disappeared. So far it hasn't come back on. What could this be? Is it serious?

Asked on 6 June 2017 by Maja

Answered by Honest John
The engine oil light signifies a lack of oil pressure. Could be because the sump strainer is blocked with sludge. Could be the oil pump is failing. Could be the piston rings are worn. This is serious. I would use The Consumer Rights Act 2015 to back the car on the dealer. If he refuses to take it back and refund your money, send a letter to him by recorded delivery stating your disquiet and that you still intend to take the matter to small claims, then do exactly that. See:
Similar questions
I purchased a faulty car from a garage and, after discovering this, told the garage that I wanted a refund under the Consumer Rights Act 2015 because the car is not fit for purpose. We only had the car...
I've bought a second hand petrol Honda Civic 1.8 with 20,000 miles on the clock. I got it 10 months ago from a Honda dealership with a 1 year warranty. 3 months after the purchase, I experienced a radiator...
I bought a used 2011 Ford Mondeo for £6795 from a dealer at the weekend, but only after collecting it on Tuesday have I noticed a couple of problems. Firstly, one of the exhaust hanging brackets is corroded...
Related models
Solid and decently equipped. Reasonable handling and some frugal engines.

Value my car