Can't drive it cause insurance doesn't like the fact my dad owns a modified Golf.

I was on it for a month, won't do it for another month. Gotta wait til April.
But the oil light kept coming on when it got warm and the idle was low. Was fine at 860 revs and above. Not below tho.
So I was hoping the strainer was blocked, it wasn't.
Now I'm hoping it's the FILTHLY oil, it's absolutely aweful. No idea why after 1300miles, the rings don't leak at all so I'm putting it down to the fact the headgasket was gone when I got the car and the fact it's been sitting.
The oil had only done 1300 miles though. Worse then diesel oil after a year. Will flush it a couple of times, then providing it's being used, in a month I will do another oil and filter change just to check the condition of the oil.