£4.70 unleaded in a diesel.

[GREGA]

Got up at stupid oclock to go to work, car had just under a half a tank of disel, thought I'd top it up as the petrol staton,put £4.70 worth of unleaded in, about 4 litres, realised straight away, stopped and brimmed it with disel, it's a 2012 Renault meganne 1.5 Td, will it be okay? Any tips appreciated!

Ta