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  #13  
Old 04-06-2012, 09:17 AM
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Re: Break-in Oil

Wonder if the sensor actually responded to particulates, etc. in your oil to indicate an oil change that early? As far as how many miles of oil life you have it seems that would not be possible as the sensors don't know what kind of driving will take place, towing, offroad, city vs. highway, etc. In any case I'm convinced to make my first change around 3,000.
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Old 04-06-2012, 09:26 AM
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Re: Break-in Oil

Below is a paragraph from the WK2 maintenance page. The last sentence would indicate that driving style does drive the EVIC notice. What type of driving did you do for the EVIC to go off at 3500K - just curious if it qualified as "severe"?

OIL CHANGE INDICATOR - RESET

The Grand Cherokee is equipped with an engine oil change indicator system. The “Oil Change Required” message will flash in the EVIC display for approximately 10 seconds after a single chime has sounded to indicate the next scheduled oil change interval. The engine oil change indicator system is duty cycle based, which means the engine oil change interval may fluctuate dependent upon your personal driving style.
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  #15  
Old 04-06-2012, 10:50 AM
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Re: Break-in Oil

Oil is not sensed, it is just a math algorithm based on engine hours, cold starts, and temperature. Those that drive a lot of short trips or idle a lot will get the 3500 mile indication.
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Old 04-06-2012, 11:26 AM
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Re: Break-in Oil

Explains it, thanks! I ask because my 08 MB apparently has a sophisticated oil sensor that analyzes the oil, particles, etc. and that there was some combined work on a few of these things when it was Daimler Chrysler.
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Old 04-06-2012, 06:01 PM
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Re: Break-in Oil

Quote:
Originally Posted by Justal13 View Post
Dealer told me it was set at the factory to go off at 3500 miles for the initial fill. It went off at exactly 3500.0 miles.....
I don't think so, unless thats a 2012 change. Mine and quite a few others went off at 8000 miles, then 16000. 90% highway 50 mile commutes. My dealer said they could program the reminder to go off early if I wanted. I declined.
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Old 04-07-2012, 12:47 AM
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I'm just past 3600 and my monitor hasn't gone off. Ill probably change it in a couple weeks as thats when ill have time to take it in, so it'll have probably 4000 on it. Depends whether I drive the jeep or ride the bike to work.

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  #19  
Old 04-07-2012, 01:06 AM
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Unless there is a special "break-in" chemical additive in the factory-fill, there can be no harm, except to the owner's wallet, in changing the oil before the EVIC oil life monitoring system says to do so.

And to this point, no one has been able to say there is a special break-in component in the initial factory-fill.

Today's cars do not have specific extended break in periods. I think my 2012 manual says there is no specific extended break in period for the engine. It advises to drive the first 50 miles at various but moderate speeds (to about 50 mph). After that, vary the speeds in a controlled manner by accelerating quickly at times but within local legal speed limits.

That's all it says about break-in. So by 2000 to 3500 miles should be plenty for those of us who are inclined to do the early oil change.
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Old 04-07-2012, 09:57 AM
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Re: Break-in Oil

Quote:
Originally Posted by Justal13 View Post
So you ran your break-in oil to 8000 miles huh? And your sensor went off at 8000.0 miles on the dot? And then 16000.0 on the dot. And many others say the same thing?

Seriously doubt it.

The key word you used was programmable. Like at the factory, or dealer.

My dealer told me the initial fill was to be changed at 3500 miles. I said the EVIC went off at exactly 3500.0 miles. Doubt me? (I have a witness - my wife was in the GC and I even commented on it to her - something like "hey, the dealer was not BSing about changing the oil at 3500 miles, look there - 3500.0 miles on the dot). Somebody obviously programmed it to go off at 3500 miles for the initial fill.

After the initial EVIC reset (at whatever mileage you or the dealer reset it at), the mileage to the next EVIC event is based on an algorithm that includes mileage, time, driving conditions, etc. It does not go off every 8000 miles like a timer.

The title on this thread is when the break-in oil is supposed to be changed. My dealer and many other sources say 3500 miles, then follow the EVIC thereafter.

The owner's manual (page 638-640) says to change the oil (including the original fill) every 8000 miles or 6 months. It also explains how the EVIC oil reminder works...
Sounds like you are getting a bit off topic here. Today there is no such thing as break in oil, that is a urban legend. Where have you seen evidence that there is a break in oil, or are you going by here say? Do a little bit of research. Although you may want to be criticize the quality of OEM oil, it is plain dino oil without any extra cost additives.

I don't know where you are getting your false info from and then stating it as facts. The dealer service writer? The same dealers say that you must buy their extra costly protection to keep the seats looking like new? The same dealer that doesn't know the difference between transfer cases? Although I'm sure there are dealers better than others, but blind trust in a dealer is a sign of naivety perhaps. It sounds like we are in violent agreement otherwise, not sure why you are taking it personally.

I did not doubt that you saw a oils change warning go off at 3500 miles as many here do. I'm not sure where you got that idea, are you reading into my post? You stated that all oil change indicators go off initially at 3500 miles, and I say that may be BS as many here go off at 8000 +/- a few miles. Perhaps your dealer programmed it prior to delivery? (ps I'm not sure if the WK2 max mileage is actually programable) That can't happen right? If you do some research before spouting off, perhaps search the forum you will even find some photos. What needs to be done to reset (not re-program) the change indicator after early oil changes has been discussed often.

Anyway facts are facts, opinions are opinions. If you want to throw perfectly good oil away to feel cleaner and safer, there nothing wrong with that besides the environmental impact.

Bottom line is just about all dealers and oil change shops recommend 3000 mile intervals as that's how they maximize their profits (they justify because they think customers don't know how to tell if its a severe environment and 3000 miles is the most conservative). My dealer's service writer mentioned the same thing until I challenged it. Service writers are directed to suggest 3000 miles or so.

Chrysler makes no money from oil changes, so they recommend 8000 miles and that has plenty of built in margin. You may want to check out some oil analysis sites, and truck discussions, where oil changes cost big money and changing oil more often than needed eat into their slim profits.

ANyway, sorry I gave you the wrong impression from my statement that many of us didn't see a oil change warning until we saw 8000 miles or so on the clock and that many of us think 3000 mile changes is BS unless you are driving in a severe environment that breaks down dino oil.
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  #21  
Old 04-09-2012, 09:39 AM
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Re: Break-in Oil

I think they changed the first oil change reminder mileage from 2011 to 2012

Our 2011 JGC "oil change due" reminder came on at 3000 miles (this car does alot of short trips and does not always get warmed up before being driven off in the morning, plus the A/C is usually always on, on this car)

Our 2012 is at 3200 miles and the reminder has not come on as yet (this car usually gets run at least three minutes before it gets driven off in the morning, and the air conditioning hardly gets used in this car)



Our service writer said that the first oil change should be a done at 3000 miles.

I asked about switching to full synthetic and he alluded to using what the factory prescribed for warranty purposed.

I decided that I would refrain from switching to full synthetic oil until the second Oil change for both cars.



My car hit 3500 miles on the clock on 4/17/2012 and sure enough the message "Oil change Due" popped up in the EVIC.

I wonder if it is just mileage or hours on the engine that makes the difference in the "on board diagnostics" determining when the oil needs to be changed?
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  #22  
Old 04-09-2012, 09:53 AM
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Re: Break-in Oil

My 2012 1st change indicator went off at the 4k+ mileage.
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  #23  
Old 04-09-2012, 10:36 AM
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Re: Break-in Oil

Did I ever use the term "break-in" oil in my post - No. The OP did. I used the term "initial fill".

Did I ever say all GC's come from the factory programmed for the EVIC to go off at 3500 miles - No. I said either somebody (dealer, factory, who knows, I do know it was not me) obviously programmed my GC to do so or it was a huge coincidence.

I do know how to re-set the oil change indicator in my EVIC (doh). Did I ever say I did not - No.

Perhaps you should keep your negative personal comments and opinions to yourself, and do a better job of reading other's posts before posting such comments.

Thread unsubscribed.
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Old 04-09-2012, 08:37 PM
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Re: Break-in Oil

Obviously, none of you have seen these things loaded/unloaded from railcars at auto sites... Believe me, there's no point driving it gently, some one already beat the piss out of it with a brand new engine in it. The employees on the sites get paid per car unloaded. Ever see a brand new mustang fly out of the back of a railcar and shoot sparks when it bottoms out on the pavement? I have! ....and no I don't work at an auto site. ...but, I do work for a class 1 railroad that drops railcars (auto racks) at said horror shows. So, moral of the story, your car has been brutally broken-in for you. I told myself I'd never buy a car shipped by rail, but all the manufacturers that ship by rail offer rail employees large discounts on their cars. "Affiliate pricing," they call it. I looked mine over real close, and rejected two before I chose the one I took home.

Buyer beware!
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