Hi,
Just found out Ryco make an aftermarket oil filter for XJ diesel engines. Check out their site
www.rycofilters.com.au
Also for fuel filter it seems a Racor element model S3204 fits. Haven't tried but maybe element R15 is even better.
Check out
www.racor.com under spin on series 200 and series 320.
Anyone know who really makes the air filter for the diesel?