Octane

Tiny
TLG15301
  • MEMBER
  • CADILLAC ELDORADO
I have a 1997 Cadillac Eldorado ETC with 66,000 miles that calls for 91 octane gasoline. Is there a way that I can make it run on 87 octane gas? It is my understanding that 1998 and newer cadillacs will run on 87 octane. Is there a chip or kit that I can get?
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Tuesday, June 5th, 2007 AT 10:57 AM

1 Reply

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
You can run the car on a lower octane. Octane give a hotter combustion, giving more horse power. You will see a diference in your gas milage and performance. Mpg will be a little lower.
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Tuesday, June 5th, 2007 AT 11:12 AM

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