Engine oil dipstick

The technical Service Bulletin 100-17 by Jaguar suggests:

As a running change in production, introduced early in 2000 Model Year XK8 and V8 XJ Series vehicles, the engine oil fill has been increased by 1.0 liter from the VINs listed above. This has been achieved by installing a revised dipstick, part no. XR8 2806.
The data concerning oil sump capacity in the customer literature accompanying certain vehicles from the above VINs will be incorrect, until supplies of handbooks and maintenance information containing the revised information become available

Note by vendor:

Up on best practise this is for all V8 AJ27 and AJ26 engines