Tow it you mean, don't run the engine with the crank going for a swim in the oil!
I didn't say drive it!

Tow it you mean, don't run the engine with the crank going for a swim in the oil!

The top post honestly just sounded like your clutch was slipping. If you've put another 5L of oil in I wouldn't want to drive the car too much.
But I've had the master and slave clutch cylinders replaced because it used to be impossible to get it into gears. That was three months ago.
The top post honestly just sounded like your clutch was slipping. If you've put another 5L of oil in I wouldn't want to drive the car too much.
If it was clutch, the revs would be going higher than 3k.
My guess, blocked fuel filter, or dodgey MAF. Or faulty oil pressure sensor, initiating limp mode.

How does the engine sound when you've got you footdown?
My bet is that it's going into limp mode due to a boost leak
Found this video
Might replace the MAF myself
I would advise you pay somebody else to do it and anything else that needs doing on your car. I would keep your level of involvement with the car to simply driving it and putting fuel in.