So this oil can light (next to fuel gauge) flashes recently,  I changed my oil and differential fluids,  held down both black buttons on the dash, set the milage for 450, turn off z8 and start it again and the light is still flashing,  any help would be great.

sorry fellas i got it to go out, i wasn't holding the 2 buttons down again after selecting mile asn then turning key off while holding the buttons down.

So this oil can light (next to fuel gauge) flashes recently,  I changed my oil and differential fluids,  held down both black buttons on the dash, set the milage for 450, turn off z8 and start it again and the light is still flashing,  any help would be great.

Set the milage for 450? You can set a warning lamp for a predetermined point like for service?

Nope. What he did was screw with the speedo settings....