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Old 02-03-2012, 09:54 AM   #1
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2012 Oil Change Warning Light-Miles?

Dealer changed the initial oil out (for free) with synthetic (my choice) at @ 800-1000 miles. Oil change warning light came on @ 4700 miles. Manual says change by 8000 or 6 months and "Oil Change Required" EVIC should come on @ 500 miles before (7500?) but that it is also "Duty Based". I am guessing that the dealer reprogrammed the interval to @ 3000 miles but honestly don't know.

When are other owners milage intervals for "Oil Change Required" EVIC warning showing up?

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Old 02-03-2012, 09:43 PM   #2
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The system is duty cycle based not mileage based so your question is irrelevant. Your dealer should have reset you oil change reminder when he changed the oil.

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Old 02-04-2012, 08:55 AM   #3
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Quote:
Originally Posted by daggo66 View Post
The system is duty cycle based not mileage based so your question is irrelevant. Your dealer should have reset you oil change reminder when he changed the oil.
Thanks Tom. My understanding is that it is both duty cycle based and milage based. If duty cycle doesn't trip it, milage will. I do not, at present, have access to a dealers programming module. The service interval was changed upward for the 12s. I am interested in what other MY 12 owners are seeing for milage intervals when their warning trips.
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Old 02-04-2012, 09:03 AM   #4
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Your understanding is not correct. Read your owner's manual. Not the quick quide, the full manual that is on your DVD, or download the .pdf from Jeep.com. It clearly states that it is duty cycle based, not mileage based. It is reset by turning your key to the "on" position (2 clicks) without starting the engine. Fully depress the gas pedal 3 times. Turn the key off.

Some people (jk'n) have claimed that the dealer has set the system to trip at a specific milieage. To date, no one has provided documentation to support this.
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Old 02-04-2012, 09:06 AM   #5
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Both my hard-copy manual (the 600+ pager, not the quick version) AND my dealer say the oil change interval is solely duty-based. Mileage is irrelevant.
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Old 02-04-2012, 09:13 AM   #6
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Quote:
Originally Posted by KarlG View Post
Thanks Tom. My understanding is that it is both duty cycle based and milage based. If duty cycle doesn't trip it, milage will. I do not, at present, have access to a dealers programming module. The service interval was changed upward for the 12s. I am interested in what other MY 12 owners are seeing for milage intervals when their warning trips.
Daggo is correct. It is not time or mileage based. And, it is only a recommendation. You still are supposed to change the oil twice a year and no longer than 8,000 miles for a 12. It seems that there are alot of individuals who totally rely on this system to do maintenance (oil changes) when Chrysler clearly indicates that you shouldn't. The E-85 issue does not apply to a JK. Notice they indicate "may". Mileage by itself will not trip it nor will time. We all still need to be conscious of when we need to do general maintenance.

Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel usage will
influence when the “Change Oil” message is displayed.
Depending on operating conditions, the message may
appear as early as 3,500 miles (5 630 km) since last reset.
Have your vehicle serviced as soon as possible, within
the next 500 miles (805 km).
NOTE:
• The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s
oil if it has been six months since your last oil change,
even if the oil change indicator message is NOT
illuminated.
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Old 02-04-2012, 09:16 AM   #7
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Yep, I did read it, and it refers to duty cycle based and to scheduled service/ oil change interval.

Quote:
Oil Change Required
Your vehicle is equipped with an engine oil change indicator system. The “Oil Change Required” message will flash in the EVIC display for approximately 10 sec- onds 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.
Unless reset, this message will continue to display each time you turn the ignition switch to the ON position. To turn off the message temporarily, press and release the MENU button. To reset the oil change indicator system (after performing the scheduled maintenance), perform the following procedure:
1. Turn the ignition switch to the ON position. Do not start the engine.
2. Fully depress the accelerator pedal slowly three times within 10 seconds.
3. Turn the ignition switch to the LOCK position.
NOTE: If the indicator message illuminates when you start the vehicle, the oil change indicator system did not reset. If necessary, repeat this procedure
.

Quote:
Change Engine Oil
The oil change indicator system will remind you that it is time to take your vehicle in for scheduled maintenance. Refer to “Maintenance Schedule” for further information.
NOTE: Under no circumstances should oil change intervals exceed 8,000 miles (13 000 km) or six months, whichever occurs first.
Parameters for duty cycle programmed into the controlling computer code I have no knowledge of.
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Old 02-04-2012, 10:21 AM   #8
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Solely duty based, got it

Thanks, everyone.

Probably tripping because of low ambient temps, Ethanol blends and some short cycles.
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Old 02-05-2012, 12:15 AM   #9
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On my 2012, it just came on at 3500. I drive very short distances and it's damn cold here in PA.

Should I wait until 8000 or get it changed? Nervous.

Thanks!
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Old 02-05-2012, 12:57 AM   #10
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Quote:
Originally Posted by Jeep Rat View Post
On my 2012, it just came on at 3500. I drive very short distances and it's damn cold here in PA.

Should I wait until 8000 or get it changed? Nervous.

Thanks!
Stock oil? Get it changed.

I usually put Mobil 1 Synthetic in everything and change at 10,000 regardless what the indicators tell me.
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Old 02-05-2012, 07:57 AM   #11
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Quote:
Originally Posted by Jeep Rat View Post
On my 2012, it just came on at 3500. I drive very short distances and it's damn cold here in PA.

Should I wait until 8000 or get it changed? Nervous.

Thanks!
8000 is the MAX you should wait under perfect conditions. No one drives under perfect conditiions. Short trips in cold weather are hard on the engine, that's why it came on early. Change it now.
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Old 02-05-2012, 09:02 AM   #12
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Like Alexia I use Mobil 1 Synthetic also but I agree with Tom on the 8,000 mile max. There's a reason Jeep recommends that limit so I'll try to adhere to that standard. And tough driving conditions may warrant earlier oil changes. This is an area in which there will be many different opinions.
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Old 02-05-2012, 10:19 AM   #13
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Quote:
Originally Posted by Old Shadow View Post
Like Alexia I use Mobil 1 Synthetic also but I agree with Tom on the 8,000 mile max. There's a reason Jeep recommends that limit so I'll try to adhere to that standard. And tough driving conditions may warrant earlier oil changes. This is an area in which there will be many different opinions.
I don't think we agree. I change mine every 3k. I was merely pointing out that 8k is not what Jeep recommends. It's what Jeep says that you should not exceed.
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Old 02-11-2012, 12:42 PM   #14
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i heard you should change your oil and oil filter right after first 1k miles. im at 920miles, is this true??
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Old 02-11-2012, 02:32 PM   #15
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Originally Posted by sergeoval8157 View Post
i heard you should change your oil and oil filter right after first 1k miles. im at 920miles, is this true??
I just got 1002 miles and changed it today . I will change it again at 4000 miles I do every 3 thousand miles and will also rotate tires . my driving is short stop and go miles . and to add I never did a easier oil change then this jeep I didnt get dirty at all !
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Old 02-11-2012, 04:33 PM   #16
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I changed "break in" oil @ 800 -900 miles. Personal choice, wasn't recommended. Change oil light came on @ 4600-4800. Scheduled for a (free) change at the dealer.
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Old 02-11-2012, 06:18 PM   #17
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Quote:
Originally Posted by sergeoval8157 View Post
i heard you should change your oil and oil filter right after first 1k miles. im at 920miles, is this true??
I always do it. My belief is oil gets dirty quicker from engine break-in.
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Old 02-28-2012, 08:42 PM   #18
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I changed mine at 3347 and shortly after that it told me there is an "Oil Change Required." I'm gonna read the manual and do the key/gas pedal procedure daggo66 spoke about. I also drive short distances every day here in PA, like Jeep Rat. I'm glad I found this forum. Thanks, all.
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Old 03-08-2012, 01:33 PM   #19
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Do new engines still even have break-in oil?
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Old 03-08-2012, 03:24 PM   #20
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They do not.
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Old 03-07-2013, 04:39 PM   #21
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Stock oil? Get it changed.

I usually put Mobil 1 Synthetic in everything and change at 10,000 regardless what the indicators tell me.
Ditto.
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Old 03-08-2013, 02:21 AM   #22
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I was initially going to change my oil when the "change oil" light came on, but at 5,000 miles without indication, I just went ahead and did it. As soon as I changed the oil, I did the steps to reset the indicator. I'm not even sure if I was supposed to do that or not without the light coming on. Does anyone know if that would even do anything?

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