I'm sure that they will help SLIGHTLY.
I've personally never used them but have considered it several times.
I'm sure that they will help SLIGHTLY.do these things really help? me and a friend were debating this today. neither of us cant see how they would hurt anything but are they actually a benefit the engine to use them?
please explain this. how are they useless?useless
ever cut open a "metal" oil filter and see its passages?please explain this. how are they useless?
great explanation :thumbdownever cut open a "metal" oil filter and see its passages?
if you are interested in those i can also find you exhaust magnets. they'll give you a boost in gas efficiency