Buick Park Avenue real world MPG

3 messages, Last post on Apr 11, 2009 at 8:07 PM

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#2 of 3 Re: Buick Park Avenue real world MPG [danbass] by heyboer Aug 11, 2008 (7:14 am)
Replying to: danbass (Jul 27, 2008 9:17 am) 25 fully loaded at 80 mph!
#3 of 3 Pk Ave Ultra Real World MPG by buicks5 Apr 11, 2009 (8:07 pm)
24-25 at 75-80mph, 29-31 at 55-60mph, 21-22 in short freeway commuting. Engine has 204,000 miles on it and uses no oil, no smoking at all, starts instantly, pulls hard. I challenge dealer to find issues to fix, but they say no codes set, and it is a great engine. Some dealers report 3.8's with 300 and 400 miles on them. I do run Mobil 1 10/30 and their filter, which is extra fine filtration (10-20 microns). Bulletproof engines. Gm made it from 1962 until Aug 2008 (45 years!).