Originally posted by pinoydon2003
LoL me and my friends tried that before as a joke.. it really improved our gas mileage tho, wooohoo
who puts bull**** in there car for a joke? are you insane?
anyway, i ran some STP fuel cleaner, and a round of GUNK. even though I _ALWAYS_ run mobil 1 filters and oil, it did produce some extremely black goo. the people who owned the car before me must have used a lot of dinosaur juice. its funny, as the mobil1 is usually pretty clear, this time it was pitch black
