Ahh, where to start..
Originally posted by: Snatchface
Tossing this one out there for the car gurus. Brand new Accord V6 6-speed with factory fill oil. Checked the oil around 1,000 miles and it was clean and completely full. Checked it yesterday at 1,600 miles and it was down about 2/3 Qt and it was significantly darker. The car has been totally pampered but I have started to open it up a bit more lately. Should this raise any concern?
I don't think that you should leave the break-in oil in it for as long as you have, but .. I err on the cautious side. I don't think it should raise a concern, but I do think you should change your oil.
Originally posted by: KokomoGST
nope... not neccessarily, did you give the car sufficient time to drain all the oil back into the pan on a flat surface?
Also, oil consumption does tend to be a bit higher during break-in.
Very true. If you didn't check the oil after waiting for 5-10 minutes, this could be the case. And yes, oil consumption is going to be a bit higher while everything seats.
Originally posted by: Vic
Honda uses some special burn-in oil and it is not uncommon to see some consumption during the first 2-3k miles. After I bought my '98 Integra, it was a quart low at 2k miles, when I had the oil changed for the 1st time. In the time since then, until I recently sold it at 76k miles, it never burned another drop.
I have never heard of a "special break-in oil", and do not believe such a thing exists. If anything, a "special break-in oil" would contain no friction modifiers to promote fast break-in(therefor making it worse than "normal" oil).
Originally posted by: Marlin1975
Yes that is normal. Change it at 2K, as someone else said, and DO NOT USE 5W20. Use 5W30 if you live in a very cold climate or 10W30 for more mild to warm climates. And if you plan on keeping the car for 60K or more, change your oil every 3K or 4-5K if you use Mobile1.
And don't use Fram oil filters, and you will be OK.
If you
really want to go
all-out for your car, run an AMSOil bypass-filter system along with your synthetic of choice. If you're concerned about your engine being broken-in fully, change the oil and run a normal conventional oil for another ~1500 miles, then switch to your synthetic regimen.
At this point, it's kinda a guessing game as far as break-in goes. The best way to really know if your engine is broken in is to measure and document the compression of each cylinder when you take delivery of the car.
Then measure every ~250 miles or so. Make sure you measure when the car is warm if you started when it was warm. When the numbers level off and stop rising, your engine is now broken in.
This also gives you something to work with if you ever develop problems down the road.