Northstar Modifications for 2004

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Aug 8, 2005 | 06:53 PM

tobby

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Northstar Modifications for 2004

I found this aticle about the changes made on the Northstar '04

http://media.gm.com/cadillac/00cad/d.../northstar.htm

Aug 8, 2005 | 09:20 PM

1993 SLE

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interesting

Aug 8, 2005 | 09:21 PM

Sol

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So they lowered compression to accomodate regular fuel. I can see that being a plus for sales.

Aug 9, 2005 | 11:50 AM

tobby

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Additional information from a GM-WEB page

http://www.gm.com/automotive/gmpower...star/index.htm

Aug 10, 2005 | 11:39 AM

gm4life

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They did the regular fuel in 2002 in the Devilles!

Aug 10, 2005 | 11:59 AM

Custom88

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they can run on regular fuel but not optimally. The GXP performs pretty badly with regular. With premium it drives quite a bit better. My shortstar also only 'requires' 87 but it performs quite a bit better with 89+I'm curious if that'* why the GXP drives so bad in comparisons between it and the SSEi. If dealers are only putting in the 87 octane because that'* all they 'require' that'd make a big difference on your driving impression..