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Re: [GMCnet] GMC Coach - New Braunfels, TX [message #78011 is a reply to message #77929] Thu, 25 March 2010 10:23 Go to previous messageGo to previous message
emerystora is currently offline  emerystora   United States
Messages: 4442
Registered: January 2004
Karma:
Senior Member
The government has changed the way that companies post octane numbers.

The way it was done in the 70's gave a higher number so the numbers in
the GMC owners books are higher than the regular gas (about 87 now)
shown on the pumps today.

However 87 octane will work fine in our V8 GMC engines


Emery Stora

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