08-01-2014, 07:06 PM
I think it works but depending on the garage you go to it can be totally extortionate, not so long after I got my HDi my local Shell had V-Power Diesel at only 2p p/l more than Fuel Save so I ran it for about a month until I suppose they noticed their cock-up, but it worked wonders, all the knocking, clunking, and tapping in the engine went and it's never come back and runs great, I did a few months mixing Millers Diesel Power Eco Max in with Shell Fuel Save aswell and again a noticeable improvement over just boggo diesel, ran quieter and smoother, not as smokey and a little more pokey :-)