About the Redex... it cleans more than the additives in petrol, but what happens with the dirt it losens? Does it solve and not float to another place? And how would you compare 95 octane petrol (with the 5-10 percent) ethanol plus Redex, to a higher octane petrol without ethanol and better additives (V-Power/BP Ultimate) without
If you have been using premium fuel your system will probably be pretty clean anyway, but purpose made system cleaners are not expensive.
I experience the difference — smoother drive (maybe between my ears) and a few percent better MPG compared to the Euro 95 petrol i used before. But with using a premium fuel without ethanol, an extra system cleaner might be overkill. And going back to a fuel with 5-10 percent ethanol will always give a decrease in MPG whatever cleaner i put in, i guess.
It sounds like a challenge between the most kilometers per litre (your MPG) for the lowest costs, but i really care about a clean system as we like to drive this Jazz for many more years. And ultimately that saves more on the long term.
Anything that the cleaner dissolves is only stuff that is normally in fuel anyway and will just get injected and burned with fuel.
Thanks! I was wondering about that always, both with Redex and other brand cleaners.
Redex is not the only cleaner available Wynns, STP and others make similar product, you only need to use it occasionally, add some to tank of fuel about once every one or two months - which means it is not expensive.
Again, with a premium fuel it might be overkill, or not?