by duality » Tue Jun 03, 2008 4:34 pm
are you sure the rattles weren't valves ticking. Often times on FI cars you will get early detonation and make a "rattle" sound just from bad gasoline. Cheap 91 octane is not always better than "good" 87 octane.
Me... I would never put anything less than 91 in a FI car. Too bad we don't have 93 here in Phoenix.