mercdriver25
Senior Member
Do things like reddex (and other similar agents that you put into the fuel tank) actually do anything beneficial to the fuel system or are they just a gimmick?
I've used them a couple of times, but have not noticed any difference in performance/MPG/smoke/starting/transmission etc.
![Eek :shock: :shock:](/styles/default/xenforo/smilies/eek.png)
I've used them a couple of times, but have not noticed any difference in performance/MPG/smoke/starting/transmission etc.
![Eek :shock: :shock:](/styles/default/xenforo/smilies/eek.png)