is it 5w 30 or is it 10w 40?

Use 10/40w for normal conditions. If you are in a colder region, say around -8C for longer periods go to 5/30.
As your vehicle has a few miles under its belt going too thin with the oil could well drop the pressure and harm the engine

Metric spanners rule all nuts
August 2012

YOU know it must be low ash. BUT not the viscosity.

DUH!

AS I do not know where you are, I cannot comment. Different viscosities with climate.

SD
August 2012