Thread: OCTANE
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  #5  
Old 11-20-2002, 07:07 PM
ratesguy ratesguy is offline
Hummer Professional
 
Join Date: Nov 2002
Location: dallas,texas,usa
Posts: 329
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my dealer said to NEVER put less than 89 octane in the hummer. any reason for this? is it tuned for higher octane?
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