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  #13  
Old 12-11-2013, 11:19 PM
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Re: First oil change some info and comments

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Originally Posted by Timo13 View Post
Thanks for the post. I was planning the first change at 1000 as well. What are you going to after that? I was thinking every 5000, with the second oil change at 5000 so it's easier to remember.

That sounds like a good idea...but of course I'm no authority..

My oil life was at 85% with 1100 miles when I did the change; now I have 650 miles since I changed it and reset the indicator to 100% and the oil life indicator says 80% so I'm just going to play it by ear and see how the oil life percentage decreases.

So in 650 miles it went from 100% to 80% yet in 1100 miles it went 100% to 85%....I know its not an exact science so I'll just watch as it goes like everyone else but I have a feeling, at least at that rate, it wont be all that long before it recommends it.

Besides what did new car owners do before all this fancy oil percentage business...stick to an easy mileage change schedule
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Old 12-11-2013, 11:42 PM
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Re: First oil change some info and comments

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Originally Posted by nailem View Post
Great write up but sounds IMO to be complete overkill. There is no need or benefit to change the oil so often. Modern oil and modern motors are made for extended drain intervals. The 3000 drain is from the 50'. Again in IMO you are not only wasting money but oil.
I run amsoil in my duramax. It is good for 25,000 miles or one year. I have had it tested at 18,000 miles and it still showed life left in it.
Also why do you need to wait 30min after filling with new oil? Once the oil is drained you fill the pan back up. The pump has to pump it through the filter and oil passages.
I don't think I implied I was going to change every 1000 miles and I know 3000 mile interval is unnecessary...I did at 1100 as the *first* not continual interval.

But for the first one on a brand new breaking-in engine I have absolutely no reservations about getting that oil out of at 1100 miles. I know manufacturing tolerances are excellent etc etc and I know on new cars perhaps a few years older it was recommended to do the first at 1000 miles.

I believe the 15 minute wait before starting after adding new oil that I quoted my first post is to allow the new oil to seep its way down through the engine into the pan so there is a good supply of oil in the pan for it to pump when first starting.

it's a recommendation on the link and I can't think of any other reason they recommend to wait 15 minutes before starting after adding 8 new quarts. It makes sense to me
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Old 12-12-2013, 12:04 AM
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Re: First oil change some info and comments

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Originally Posted by JustinB60 View Post
Did you see any metal shavings or flakes in the oil or bottom of the filter? Any signs of break-in residue?
I did take the filter media off and saw many very small silver flakes scattered pretty uniformly at the creases all the way around. I saw just a couple of copper looking colored ones too. I'm sure it's just normal new engine flakes but it was certainly a good amount you couldn't miss when stretching out the accordian folds.

I'll definitely look at each filter after oil/filter changes.

Seeing those flakes, while not harmful caught in the filter, just reassures you doing the oil/filter change.

I didn't notice the oil I didn't look closely at it.

The filter is held together top and bottom by the media. There is a center plastic skeleton tube but that just touches the top and bottom in a recessed ring, it's not affixed to either end. (hope that makes sense)
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Old 12-12-2013, 12:04 AM
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Re: First oil change some info and comments

Quote:
Originally Posted by shoestring View Post
My oil life was at 85% with 1100 miles when I did the change; now I have 650 miles since I changed it and the oil life indicator says 80% so I'm just going to play it by ear and see how the oil life percentage decreases. So it went down 5% more in about half the miles...
I'm not sure I understand the math here. Your oil life was 85%@1100mi. You then reset the oil counter - that should bring the gauge back to 100%. Now you drove 650mi and the counter is @ 80%, so you went down 20% for 650mi. Unless your reset procedure was not successful. Try the procedures documented in Oil Change Indicator Systems. They seem to have a different procedure for Diesels. At the end of it you should see your indicator go back to 100%.
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Old 12-12-2013, 12:15 AM
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Re: First oil change some info and comments

Sorry for the confusion, I wasn't clear..(I'll edit the post)

Yes I did the reset at 1100 miles, so I was at 100% starting new from there. Then I drove 650 miles since the oil change/reset and it was already down to 80% (from the 100%) in only 650 miles.

I was just making the point that I drove the car new starting at 100% and it was at 85% at 1100 miles; then I drove 650 miles (since reset/oil change) and it was down to 80%....which is a much higher oil life percentage rate decrease than the first 1100 miles (hope that makes sense)
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Old 12-12-2013, 12:22 AM
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Re: First oil change some info and comments

Quote:
Originally Posted by shoestring View Post
Sorry for the confusion, I wasn't clear..

Yes I did the reset at 1100 miles, so I was at 100% starting new from there. Then I drove 650 miles since the oil change/reset and it was already down to 80% (from the 100%) in only 650 miles.

I was just making the point that I drove the car new starting at 100% and it was at 85% at 1100 miles; then I drove 650 miles (since reset/oil change) and it was down to 80%....which is a much higher oil life percentage rate decrease than the first 1100 miles (hope that makes sense)
Thanks for the clarification. Wow! this is quite alarming. I don't really know what is formulated into the oil life gauge. They usually calculate based on engine cycles, temperature etc... did your driving style change drastically between pre-change to post-change? Maybe it's the cold weather?
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Old 12-12-2013, 12:29 AM
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Re: First oil change some info and comments

This whole save receipts and old oil filters to "prove" oil changes for warranty work is nonsense.
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Old 12-12-2013, 12:39 AM
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Re: First oil change some info and comments

It probably is yet his post was what made me think to do that just in case as I'm pretty familiar with big companies trying to wrange out of a justified responsibility. So I throw some receipts in a folder no big deal.
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Old 12-12-2013, 11:40 AM
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Re: First oil change some info and comments

Oil change algorithms typically account for a number of variables collected by the DME from the ECMs on the car. As the car evolve they increase the number of factors to provide better accuracy for changing. I have no idea why it would go to 80% then up to 85% unless the driving was initially slow speed in town with cold conditions then higher speed highway conditions.
I know that my experience with these algorithms on some cars is accuracte. I used the condition based service to inform be when to change synthetic oil on one car and that car when I sold it was running just fine at 279K miles. That was a BMW M3 not noted for long engine life. But the conditions to be able to do this were ideal. Phoenix, AZ long miles everyday.
If I was in a lot of city driving not driving that far each day I would be changing my oil more frequently.
I too will change my oil at a couple thousand miles since I will keep my diesel well past when most have moved on to other cars. Waste? Maybe but like you I know machining and engine assembly still leaves enough material circulating in the engine that I want it out.
Once I get the first change done I will as I reported before do an oil analysis at 8K miles to see what the TBN is then decide if going 10K miles is acceptable to me. I will never exceed the manufacturers change intervals regardless of what anyone says dealers are within their rights to deny warranty if exceeded.

It is not a recommendation but a requirement. See page 628 of our owners manual. "Under no circumstances should oil change intervals exceed 10,000 mile or 12 months whatever comes first." Page 638 refers you to the warranty book for details.

Now all we need to do is keep a look out for great deals on oil filters and oil that meets the engine requirments. Once we have enough diesels out there maybe we can start a group buy for at least the filters...
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Old 12-12-2013, 04:03 PM
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Interesting read. My cayenne requires oil change every 5000 miles. Some Cayenne owners think that Porsche is padding the dealers' profits since the Toaureg and Q7 are at 10,000 miles. Maybe Porsche engineers know a bit more about NAFTA diesel quality.
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Old 12-12-2013, 04:46 PM
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Wonder if anyone has thought of using Amsoil. On their site they recommend product code AEL5L-EA 5w30 European car formula. This is my first diesel so I talk to my uncle concerning these issues (been driving a 15 yo F-350 with all Amsoil fluids) and he raves about their products. Plus they are much more affordable than what pepboys has offered.
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Old 12-12-2013, 06:29 PM
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Re: First oil change some info and comments

This is the service (oil change) requirements for the CRD around the world

Aus 6 months or 10,000km (6,214 miles)
China 6 months or 10,000km (6,214 miles)
Europe/UK 6 months or 10,000km (6,214 miles)
North America 12 months or 16,000km (10,000 miles)
Latin America 12 months or 20,000km (12,418 miles)
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