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  #25  
Old 09-29-2010, 09:09 PM
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Re: Oil Change Interval

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Originally Posted by Knightrider03m View Post
2nd, Change your oil at 8000 miles or when the EVIC tells you too, which ever comes 1st.

Simple advice
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  #26  
Old 09-30-2010, 05:44 PM
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Re: Oil Change Interval

Changing the Oil every 3000 miles? Is that standard for the gc? I mean my mercedes vito (2.2l turbo diesel) needs a oil change every 18'000 miles. 12'000 miles for a oil change is absolut standard. Cant believe thats the interval is that short?
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  #27  
Old 09-30-2010, 06:17 PM
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Re: Oil Change Interval

No, the recommended is 8k...3k is "old school", but makes some folks think they are treating their engine the way it would like to be treated!
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  #28  
Old 09-30-2010, 06:42 PM
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Re: Oil Change Interval

i got free oil changes for 3 years.. so maybe i should do it every 3000 miles anyway.
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  #29  
Old 09-30-2010, 07:20 PM
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Re: Oil Change Interval

I think that's what OneCent was reading, and the freebies amounted to a 3k interval each year.
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  #30  
Old 09-30-2010, 07:46 PM
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If you are using conventional oil and drive in the conditions specifies under the heavy driving conditions such as stop and go traffic you are crazy not to be changing the oil every 3000 or so miles. Synthetics can go farther. What some people fail to see is that you will never hurt an engine by doing a proper oil change early, but you will hurt it by doing it too late. Or improperly (wrong oil, wrong filter, not draining or filling correctly). The cost of an oil change is nothing to have a tight, well running engine long into the future. Most of it is personal preference as far as frequency and oil type or filter type. All depends what you do with your jeep and what you expect from it in the future.
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  #31  
Old 09-30-2010, 09:44 PM
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Re: Oil Change Interval

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Originally Posted by whatevrworks View Post
If you are using conventional oil and drive in the conditions specifies under the heavy driving conditions such as stop and go traffic you are crazy not to be changing the oil every 3000 or so miles. Synthetics can go farther. What some people fail to see is that you will never hurt an engine by doing a proper oil change early, but you will hurt it by doing it too late. Or improperly (wrong oil, wrong filter, not draining or filling correctly). The cost of an oil change is nothing to have a tight, well running engine long into the future. Most of it is personal preference as far as frequency and oil type or filter type. All depends what you do with your jeep and what you expect from it in the future.
8000 miles is based on normal oil.

Per the manual

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.



Engine Oil Selection
For best performance and maximum protection for all engines under all types of operating conditions, the manufacturer recommends engine oils that are API Certified and meet the requirements of Chrysler Material Standard MS-6395.



American Petroleum Institute (API) Engine Oil Identification Symbol




This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils.
Caution!
Do not use chemical flushes in your engine oil as the chemicals can damage your engine. Such damage is not covered by the New Vehicle Limited Warranty.



Engine Oil Viscosity – 3.6L Engine
SAE 5W-30 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy.

The engine oil filler cap also shows the recommended engine oil viscosity for your vehicle. For information on engine oil filler cap location, refer to “Engine Compartment” in “Maintaining Your Vehicle” for further information.

Lubricants, which do not have both the engine oil certification mark and the correct SAE viscosity grade number, should not be used.



Engine Oil Viscosity – 5.7L Engine
SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy.

The engine oil filler cap also shows the recommended engine oil viscosity for your vehicle. For information on engine oil filler cap location, refer to “Engine Compartment” in “Maintaining Your Vehicle” for further information.

Note: Vehicles equipped with a 5.7L engine must use SAE 5W-20 oil. Failure to do so may result in improper operation of the Multiple Displacement System (MDS). Refer to “Multi-Displacement System” in “Starting and Operating” for further information.

Lubricants, which do not have both the engine oil certification mark and the correct SAE viscosity grade number, should not be used.



Synthetic Engine Oils
You may use synthetic engine oils if the recommended oil quality requirements are met, and the recommended maintenance intervals for oil and filter changes are followed.
That is straight from the book itself word for word.
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  #32  
Old 09-30-2010, 10:43 PM
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I'm willing to bet the cost of your next oil change that you will never see 8000 miles on conventional oil. Of the computer is basing it on duty cycles there is no way. 8000 is the max notice the "not to exceed" part. 8000 may look good in manual but under realistic driving conditions will never happen. I bet even with mobil 1 I am using it will never reach 8000. But like I said . . . Several times . . .it's your engine pay for an oil change more often or or deal with accelerated wear. Good luck with your 8k.
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  #33  
Old 10-01-2010, 12:10 AM
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Re: Oil Change Interval

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Originally Posted by whatevrworks View Post
I'm willing to bet the cost of your next oil change that you will never see 8000 miles on conventional oil. Of the computer is basing it on duty cycles there is no way. 8000 is the max notice the "not to exceed" part. 8000 may look good in manual but under realistic driving conditions will never happen. I bet even with mobil 1 I am using it will never reach 8000. But like I said . . . Several times . . .it's your engine pay for an oil change more often or or deal with accelerated wear. Good luck with your 8k.
I will not see 8000 miles on this car since I will have my Jeep back some time next week, however I can tell you this. Before I picked up the WK, it was at belle tire getting an oil change and when I got the car, it had 5200 miles on the clock. Since its a rental car, I don't know if it was its 1st oil change or its 2nd or 3rd but as we all know, rental cars get beat upon often. On my liberty in which the oil should not see pass 6000 miles, I am/was 1500 miles from seeing 6000 miles on the normal old conventional oil and my oil light hasn't came on. Now I did change the oil at 1800 miles because it was a new engine and that is what I do, but when I changed it the 1st time, the oil light was not on. I had to drop off my car at the dealership a week after I bought it so they can put on my remote start and tow package. My salesman gave me his 2010 Jeep Liberty demo for me to drive around while my car was getting service. He had 2500 miles and his oil light was on. I've personally seen a 2008 Dodge Durango that is being used as a patrol car that the light would come on anywhere between 1500 miles to 3500 miles and they use conventional oil in that. The light comes on depending on how you drive. If you drive it hard, your oil is going to turn bad faster then if you drive it like I do my Jeep which is kind of soft were I will get to use the oil for 6000 miles. I trust what the company that makes and test out our cars/engine say that the oil in the engine will last that is why they put oil change internals in the book that they produce.
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  #34  
Old 10-01-2010, 02:53 AM
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Re: Oil Change Interval

I agree, a Oil change is never wrong (if you do it properly). But i'm just surprised to see that low numbers, around 8000-9000 miles was standard before the car companies sold the car with 3-10 years service included. After that, surprisingly, we have intervals from 12'000-18'000 miles and sometime only every two years (but 24 month only with expensive "long life Oil"). Now i understand why i see that many "Oil change stations" in the USA.
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  #35  
Old 10-01-2010, 08:48 AM
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Re: Oil Change Interval

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Originally Posted by whatevrworks View Post
...you are crazy not to be changing the oil every 3000 or so miles....
Those sentiments were probably justified in the '50s, but back then it was change the oil filter every other oil change! Do what you think is best and what makes you feel good, but modern lubes and engine manufacturing processes don't call for this. In a BMW, with it's oil 'sniffer', with synthetics the interval can go to 22k. I think they may have a better engineered product, but it's still using the same oil as everyone else. Most manufacturers state 7,500 miles on standard oil, but I'd probably not go that long with it either. However, 3k changes are probably wasteful at this point.
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  #36  
Old 10-01-2010, 11:26 AM
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Re: Oil Change Interval

I get free oil chnages as well at the dealership. Anyone know what type of oil filter they use? I'm wondering if it's a Mopar branded Purelator. I'm hoping it's not those cheap, cardboard end cap Frams.
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