Yea, iv never noticed a gain in Millage or performance....im sure it works on older vehicals, but like stated earlier, there are plenty of cleaning agents in fuel now that its usualy point less to add an additive.
that being said, it shouldn;t hurt to add it, though.
If your seeing signifigant gass millage increases, each time you use a addative,then you might have a problem that your not seeing.
Or for some reason your motor is causeing an exsessive amount of build up in the injectors and valves (aka, running too rich)
Lupe
