Have 2007 XLR Passion. Says takes regular gas but premium preferred
I have a 2006 infrared and after my sis read
Some post on cadillac owners.com she insisted
That I use premium fuel. Otherwise I too
Would be hearing pings. So I guess that's the
Price we pay for if we want to have these
High performance rides.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.