[jvsantosmd]

Did I read right??:dunno::dunno: Somewhere I read that using 89 octane leaves no soot on tailpipes. Is this true? :dunno::dunno:Has anybody done it? I'm about to play guinea pig and find out...Just waiting for a long trip so the 89 tank doesn't last too long...

 

[mmrp81]

If the car is stock, then yes, it still leaves the tailpipes black, based on how the car runs rich/lean.

 

[Nosaj]

No need to play guinea pig. 89 will leave your ass black

 

[flylow]

Why go down to 89 and suffer on performance? Ill take cleaning black tips a few times a week over -hp anyday.