Swapped out the Max 'capsule' primitive for the 'oil tank' primitive, because the oil tank is easier to control in terms of polygons.
Every continuous block of model colour means that the particular section is modelled continuously, otherwise you can ignore the colouring.
Now that the large details have been completed, it is time to decide which of the smaller details that I will add. Lots of wire and pipe details mean that a close eye will have to be kept on the triangle count.
nice one man!