Having a very stressful week, so I put a little petrol in my car today I'd say about 2 - 3 liters about 3 - 4 seconds before I copped on, there was already a good bit of diesel in it - up to the first mark on the gauge and I put more diesel in up to about middle of the gauge, had to drive home and it was fine but should I brim it now or get the tank emptied.