Injector cleaner

Ok--I blew it--meant to post the question here intead of where I did. Does the 4.0 have a favourite injector cleaner? My XJ is a '98 w/150kms/94k miles. The Lucas stuff I have looks to be more than just injector cleaner. Thanks and apologies to the two kind fellows who already answered on OEM Tech.
Patman

Both Lucas and SeaFoam are favorites here.

The answers you got on JF are correct

Okay--Thanks guys--I got my whys and wherefors of posting on the two forums a little fouled up. Good info Thanks muchly
Patman