Quote »What's the average maintenance costs on a 2003-04 M45?[/quote]I have a thread with values from the local Infiniti dealer ... yes, these cars are not inexpensive to maintain, unfortunately, but not bad at all for a luxury line!
Quote »the synthetic oil change is $85[/quote]I do it a bit differently. 6 quarts of Mobil 1 0W-40 from a local Kragen is just over $38 (including tax), the filter and crush washer (don't forget that!) from Joe Tsensky at
http://www.everythinginfiniti.com is just over $5 or so (if you buy 6 at a time), and the local Goodyear place charges me $12 or so for the oil and filter change.
Z