M4T5 wrote:Moderators should pay attention to this issue and post it as a sticky.
Should have been done a long time ago.
I doubt they will post it being its a cronic issue that plagues Infiniti. Plus they probably sponsor this site in some way.
What does that give us here?? A political debate!! What's new!
Well ... first and foremost, regardless of whether Nissan Motor Corp sponsors us (which they do not, afaik), we would not, and
do not, hide issues that are real problems for our cars.
If you do a search for the topic at the NICO site, you will see many posts (including
many from me) specifically talking about this issue ... particularly for our model years (2003 and 2004 M45). We do not filter or eliminate these posts at all.
The reasons I have not put the consumption topic (or any issue) as a sticky are fairly simple: (a) too many things can be stickied and (b) they get overlooked. For some reason, people do NOT read the stickies often.
Finally, surprising as it may seem, the oil problem does not occur with
all those cars ... a recent estimate is that about 15 to 20% of these engines have a real oil consumption issue. Defined as "more than 1 qt per 1000 miles" to warrant an engine swap - which Infiniti will do (albeit with some pushing in way off-warranty situations).
In these looser-tolerance M45 engines, some oil use is apparently relatively normal ... done to increase horsepower. And, in my opinion, somewhat related to how you break the engine in during the early miles (my advice: don't baby the engine during that period and do frequent oil changes).
For example, on my 2003 M45, with 92k miles on it (pretty much all
my driven miles since I bought it new in Sept of 2003), I still use only about 1/4 to 1/3 qt -
rarely 1/2 qt - ever 1750 miles when I check about half-way between oil changes.
Is this higher oil use than I would like? Certainly! Given that both my previous Infiniti Q45's did not use a single drop of oil (as far as I could tell) between the regular oil changes at 3750 miles.
But, can I live with it? Yes. Now that I know about it and check for problems. I just buy an extra quart occasionally to top off and keep the level above the mid-point at the 1750 mile check.
As always (general observation for everybody), remember that oil levels (a) should be checked cold - first thing in the morning before you start your car, and (b) on level ground - ideally the same place in your garage or driveway each time. Make it a monthly ritual ...
Z