1/2 qt oil on 800mi trip...
Car was pretty loaded down too...trunk, back seat both holding stuff. Cold engine oil readout before trip was 4.8l, cold reading after the drive was 4.3l. I did not get any oil messages during or after the drive.
On the upside, avg mpg was 30.5 (using miles driven / refuel amount)...
Any leaks you can see? <--- Dumb question, but have to ask.
Is the car used for short trips? Maybe it was just water in the sump burning off.
I'm not to familiar with the m271 engine, But maybe cam sensors,Vacuum pump gasket. It's weird the the consumption is all the sudden.
Last edited by Jhartmann3; Apr 24, 2014 at 01:05 AM.
This is my second road trip in the car...the first one was when I purchased it out of state. I drove it ~700 miles home and promptly changed the oil, so I have no idea if it used any at that time. I did some research and it seems long periods at highway speed tend to result in more oil burning...I've topped off for now, guess I'll wait and see. I'm using M1 5w40 formula M
Weird thing is, the car didn't give me an oil low message...I checked it myself on the dash.
I'm not really concerned about the no indicator thing, these things aren't as spot on as you would like to think.
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Also I found that the slightly inclined pavement may throw off the indication by as much as 0.2l.
RWD, have you been checking the level before, between oil changes?
Could it be that it always consumes some, but you didn't check it?
I don't think it will tell you to add oil if it has more than ~4l in there though.
Never had this warning pop out on me.
Last edited by VVF; Apr 24, 2014 at 04:54 PM.
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I'm guessing the 4.3l reading I got after the trip was erroneous, it was most likely ~4.7l...which means it burned 0.1l on the 800mi drive
Waaay better than 0.5 qt
With a long motorway trips this evaporates off lowering the level.
Engine revs are usually higher on motorway trips which can increase consumption.
JC


