Thread: LS3 gasoline
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Old 10-01-2008, 09:03 PM   #2

EllwynX's Avatar
Drives: 2010 Camaro SS
Join Date: May 2006
Location: Southern NJ
Posts: 2,260
Originally Posted by Tom_K View Post
Will the LS3 and L99 run on regular unleaded or is it mandatory that it use premium?
Everything has said Premium is 'Recommended', not mandatory.

It will work fine on Regular, but with a slight loss of mpg and power from what I've been told.
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