AO Platinum Member
Join Date: Aug 2003
Location: London, England
2.5L in 1200miles is slightly over the 1L/1000km limit in the manual, but most don't use that much.
You are on 1L/480miles, the manual is 1L/625miles.
But I will say that even my little 899cc Fiat Cinq used a lot of Castrol Magnatec 10W40, changed to Mobil Super 2000 10W40 and it has been fine ever since...!
A change to 10W60 synthetic is a quick and simple thing to try before you get carried away ripping the engine apart.
Also, the oil channel to the variator solenoid is a known weak spot, leaking oil into the inlet for cylinder 1.
Audi TT 3.2v6 DSG
xAlfa 156 Selespeed sp3 + Brembo conversion
Fiat Cinquecento 899cc