We Need anti icing additive in our 365 N3's due to fuel flow meters in the lines. BP turns up with a AL48 rig on a trailer and connects the bowser to the rig and pumps the fuel through it to the helicopter. A little slower but no drama.
While enstrom says avoid aerosol additives , aerosol is better than non... Remember that nice BA 777 crash at Heathrow.... that was ice crystals in the fuel.