Granitu - I would be very interested in knowing which diesel additive brand you use. I'm somewhat surprised you forgot the name of this brand, since you speak so highly of it. Do try and remember the name and share it here. I for one would be very interested in trying it out.
I will let you know gaffer tommorrow.
Sorry unfortunately i am not wikipedia and I always buy it from the same petrol station. But all petrol station have it.

Bil Malti dejjem qedtlu 'tini dak li nhallat mad diesel'