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Unread 11-15-2015, 03:40 PM   #1
FrankAN
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Oil change interval

I am used to changing my oil on all of my vehicles at about 5 - 6000 km intervals, never more. When I went to make an apt for an oil change on my 14 Grand Cherokee with my dealer ( at about 5500 km since last oil change) dealer advised me I could wait until close to a year or just less than 10,000 km. I found that extremely strange. Checked the manual and service guide and he was right. Even the vehicle information on the dash says I am only 50% to the next oil change. I asked the dealer what kind of oil they use and it's just 5W30, not synthetic! I find this strange and confusing! Comments?

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Unread 11-15-2015, 03:47 PM   #2
tylerwhofishes
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I guess modern times call for more modern maintenance measures. I just had the 10K service done on my Jeep. No issues and the dealer said it was normal for people to be leery of waiting so long. They assured me that with the onboard diagnostics, if anything major was going on I would have been alerted.
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Unread 11-15-2015, 03:48 PM   #3
Kev M
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Welcome to the 21st century...
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Unread 11-15-2015, 04:23 PM   #4
jim_in_PA
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Yes, the oil change intervals are more extended these days unless you are driving in certain conditions as detailed in your manual. For MY14+, you can go "up to" 10,000 miles or when your JGC's oil life display tells you to change or one year if you are a low mileage driver; whichever happens first, as long as you are doing a "normal" driving pattern as mentioned in your manual.
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Unread 11-15-2015, 05:48 PM   #5
stopplease
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I'm curious if there is a warning indication from the EVIC? I'm at over 9,000 miles right now and will be changing it this week. I figured there maybe a warning at <10% left, but nothing yet
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Unread 11-15-2015, 07:04 PM   #6
jim_in_PA
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stopplease, yes, depending on the model year, the indication may vary, but you should get an indicator in the EVIC when you are at the point that the system expects you to get an oil change. For my MY12, the indication comes on a couple hundred miles before the 8000 mile mark hits. On MY14+, it can be by miles (10K) or engine oil life calculated by the system.
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Unread 11-16-2015, 08:05 AM   #7
JeepCACares
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Quote:
Originally Posted by FrankAN View Post
I am used to changing my oil on all of my vehicles at about 5 - 6000 km intervals, never more. When I went to make an apt for an oil change on my 14 Grand Cherokee with my dealer ( at about 5500 km since last oil change) dealer advised me I could wait until close to a year or just less than 10,000 km. I found that extremely strange. Checked the manual and service guide and he was right. Even the vehicle information on the dash says I am only 50% to the next oil change. I asked the dealer what kind of oil they use and it's just 5W30, not synthetic! I find this strange and confusing! Comments?
FrankAN

Regular maintenance of your vehicle is, as you know, very important to ensuring years of enjoyment. As @jim_in_pa has mentioned, there are conditions that can result in the oil change indicator lamp illuminating sooner.

Operating conditions such as frequent short-trips, trailer tow, extremely hot or cold ambient temperatures, and E85 fuel usage will influence when the “Oil Change Required” message is displayed. Severe Operating Conditions can cause the change oil message to illuminate as early as 3,500 miles (5,600 km) since last reset.
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Unread 11-16-2015, 11:01 AM   #8
BiLLyb0b
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My first oil change indicator came on at ~9500 miles (conventional oil). Dealer put synthetic in there and the light came on about ~7000 miles after? I just reset the indicator and went on about my day... what do you guys think? I was going to wait for ~15,000 miles before changing it
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Unread 11-16-2015, 12:04 PM   #9
lurtonk
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Quote:
Originally Posted by BiLLyb0b View Post
My first oil change indicator came on at ~9500 miles (conventional oil). Dealer put synthetic in there and the light came on about ~7000 miles after? I just reset the indicator and went on about my day... what do you guys think? I was going to wait for ~15,000 miles before changing it
Synthetic oil will last 25K + but the issue is the contaminants suspended in the oil that causes the wear.

If you use someone like Blackstone Labs, they can help you maximize your oil change interval.
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Unread 11-16-2015, 01:53 PM   #10
Kev M
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Quote:
Originally Posted by BiLLyb0b View Post
My first oil change indicator came on at ~9500 miles (conventional oil). Dealer put synthetic in there and the light came on about ~7000 miles after? I just reset the indicator and went on about my day... what do you guys think? I was going to wait for ~15,000 miles before changing it
I haven't seen the service manual so I can't say for sure, but I'm under the impression the Oil Life Monitor on our vehicles is strictly algorithm based (ECM calculated on factors like temperature, rpm, run time) and it has no way of actually directly measuring oil so it has no idea if you put in synth or dino and calculations are based on dino.

Meaning your experience just meant a change in your usage patterns.
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Unread 11-16-2015, 01:57 PM   #11
stopplease
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Quote:
Originally Posted by BiLLyb0b View Post
My first oil change indicator came on at ~9500 miles (conventional oil). Dealer put synthetic in there and the light came on about ~7000 miles after? I just reset the indicator and went on about my day... what do you guys think? I was going to wait for ~15,000 miles before changing it
I wouldn't unless you don't care about your warranty
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Unread 11-16-2015, 08:20 PM   #12
PMwk2
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Why would anyone spend $40 to $50 grand on a vehicle and worry about a $30 dollar oil change. Yikes
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Unread 11-17-2015, 04:56 AM   #13
diverb
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I send off a sample of my oil to be analyzed each change and I have been pushing my oil changes out to 10,000 miles and my reports are good
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Unread 11-17-2015, 06:26 AM   #14
kryogen
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on my 2011 it usually pops at 6-8000 km. I do mostly short trips and half a year is very cold weather.
So I usually change the oil twice a year.
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