The service refill capacity for your car is six litres.

SOUNDS as if you have a nice Fairlane there, Steve, and it seems a shame to sell it when it has such low mileage and is giving you good service. Instead of buying the V8 I'd consider an EB Falcon XR6 because I reckon you'd prefer the performance of that over the Ghia. Sure, the leather and the sports suspension sound great, but the XR6 will eat it for breakfast. Returning to the V8, the Windsor is a good, solid engine that gives little trouble and is good when converted to LPG. As you say, it is all steel, with cast-iron block and heads.