Sorry guys, I made a typo. I will be putting the synthetic in at 3000kms. If the car has had a little bit of "exuberant" driving, there should be no problem with possible glazing of bores or excessive oil consumption. If the car has been "pussied" around, there is a good chance it will glaze the bores anyway, but I'd reckon that any XR6T wouldn't be bought to "*beep*" around with. In respect of what oils Ford use in the factory, most manufacturers put out their supplies to tender and whoever wins the tender gets the deal for 1,2 or 3 years, depending on the manufacturer. Most of the factory oils would be mineral, except for some of the higher spec performance types. I'm not sure what goes in the XR6T engine at factory, but the auto trans and diffs have a synthetic in them. This is a different deal to the actual retail dealerships, as these guys go with whatever they think is the best commercial deal for them, provided the product that they select is an approved grade from the manufacturer. This means that even 2 nearby Ford dealers could be using different brands, but a number of the dealerships are now in "groups" and they may structure a deal for all their dealerships. Just a quick note regarding additives, whilst there are some good individual cases showing evidence of additives having solved or prevented a problem, there are NO manufacturers (as opposed to dealerships)anywhere in the world who recommend the use of proprietary additives in addition to the original spec oils. The main reason for this is that there can be no product performance guarantee from the oil manufacturer as there is no way of knowing how the additives may interact with the original oils. It costs lubricant manufacturers approximately USD$350000 to pass ONE oil type through the API system. The API is the American Petroleum Institute, and it is they who dictate the performance requirements of oils, mostly after a serious amount of input from a number of auto manufacturers. The API rating can be found on any literature from the oil manufacturer. This will likely be something along the lines of API SJ/CF or SL/CF. In addtion to that, there is also a bunch of European specs which can influence the performance specs of oils. These are the ACEA specs, and a good ACEA A2/B2 or (better) A3/B3 is the go for the XR6T. Hope I haven't bored too many people.