I have a 2008 Astra Sport Hatch 1.9 CDti 150BHP with just over 4k miles on the clock and I have just recently noticed that on a cold start the oil warning light is taking between 3 - 5 seconds before it goes out. This has only started to happen recently, is it related to the colder weather ? My oil level is OK. It has been back to Vauxhall and they have allegedly checked the oil pressure, downloaded a software upgrade, and topped up the engine oil level, however this has made no difference.
Should I be concerned ?
Has anybody else experienced the same problem ?
Any help or ideas would be greatly appreciated !