Converting a series of numbers into a 64 bit binary frame..?

Projects Programming
4

Because CAN device at the other end assigns a variable to each byte in the frame. So it will read the whole 64 bit frame then split it into 8 bytes before reading the value of each as a decimal variable.

My thought was to use bitshifting, so I have built this:

  PDU_Frame1 = 0;
  PDU_Frame1 <<= 8; PDU_Frame1 |= SideLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= MainLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= HighLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= HazLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= IndLLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= IndRLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= RFogLights;
  PDU_Frame1 <<= 8; PDU_Frame1 |= FFogLights;

It doesn't seem to work as intended though and I'm getting "f8ff022099010000" in the serial monitor..??