Oil on Cap says" Synthetic Blend" - JeepForum.com
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post #1 of 18 Old 10-25-2009, 04:03 PM Thread Starter
AndyJeep
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Oil on Cap says" Synthetic Blend"

I just bought a used 2002 Jeep Cherokee Limited. I opened up the hood today and on the oil cap it say "Synthetic Blend". I was pleasantly surprised to see that Jeep uses that. I will now make the switch to All Synthetic.

Andy

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post #2 of 18 Old 10-25-2009, 04:21 PM
Kruzin
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So you want to switch to a type of oil the is NOT recommended?
Full synthetic is not the same as synthetic blend....

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post #3 of 18 Old 10-25-2009, 04:33 PM
gbauer
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So you want to switch to a type of oil the is NOT recommended?
Full synthetic is not the same as synthetic blend....
It doesn't matter.
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post #4 of 18 Old 10-25-2009, 04:37 PM
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Originally Posted by AndyJeep View Post
I just bought a used 2002 Jeep Cherokee Limited. I opened up the hood today and on the oil cap it say "Synthetic Blend". I was pleasantly surprised to see that Jeep uses that. I will now make the switch to All Synthetic.

Andy
Is there a question?

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post #5 of 18 Old 10-25-2009, 04:50 PM Thread Starter
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The question is, wouldn't it be a better to go from a Syn Blend to All Syn?

Andy
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post #6 of 18 Old 10-25-2009, 04:54 PM
gbauer
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The question is, wouldn't it be a better to go from a Syn Blend to All Syn?

Andy
Not necessarily.

I've found that the 4.7 doesn't like to go more than 3,500 miles no matter what kind of oil you use. Any more than that and you get sludge building up. It's weird because no matter what I do, it just happens.

Rather than spending the money on Mobile1 on my Jeep, I typically use a high-mileage oil and move on with life.


I'll save my Mobile1 for my BMW and Lexus.
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post #7 of 18 Old 10-25-2009, 04:56 PM
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Not necessarily.

I've found that the 4.7 doesn't like to go more than 3,500 miles no matter what kind of oil you use. Any more than that and you get sludge building up. It's weird because no matter what I do, it just happens.

Rather than spending the money on Mobile1 on my Jeep, I typically use a high-mileage oil and move on with life.


I'll save my Mobile1 for my BMW and Lexus.
I do the same thing. I've been running the Valvoline Max Life stuff since I got my Jeep.

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post #8 of 18 Old 10-25-2009, 08:02 PM
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The only weakness of all-conventional oils are temperature extremes, both heat and cold. Conventional oils contain a hodgepodge of different lengths of hydrocarbon chains. At extremely high temperatures the shorter hydrocarbon chains can break-down and evaporate, reducing the lubricating effectiveness of the oil. At extremely cold temperatures the longer chains will cause the oil's viscosity to increase. Viscosity is basically the measure of a liquid's resistance to flow. Therefore, as viscosity increases lubricating, effectiveness decreases.

The uniformity of the length of hydrocarbon chains is more closely controlled in synthetic oils, thus their behavior at given temperatures can be more precisely predicted.

All that being said, a two-year engine-oil study conducted by Consumer reports showed no significant difference between conventional and synthetic oil in 75 New York taxi cabs.

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Last edited by acarnes83; 10-25-2009 at 08:04 PM. Reason: Typos
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post #9 of 18 Old 10-25-2009, 08:11 PM
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Wow, that's a lot of big words.
I'm impressed

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post #10 of 18 Old 10-25-2009, 08:34 PM
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Is there a question?
I lol'd.

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post #11 of 18 Old 10-25-2009, 08:56 PM
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Wow, that's a lot of big words.
I'm impressed
Yeah, I can't find HODGEPODGE in any of my training materials!
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post #12 of 18 Old 10-25-2009, 09:33 PM
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Quote:
Originally Posted by AndyJeep View Post
I just bought a used 2002 Jeep Cherokee Limited. I opened up the hood today and on the oil cap it say "Synthetic Blend". I was pleasantly surprised to see that Jeep uses that. I will now make the switch to All Synthetic.

Andy
I'm reasonably certain the the cap you refer to is not one that was put on at the factory. I've not seen any factory recommendation for "Synthetic Blend."
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post #13 of 18 Old 10-25-2009, 09:43 PM
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Yeah, I can't find HODGEPODGE in any of my training materials!
Lat time i checked Wiki answers was not considered a training manual.
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post #14 of 18 Old 10-25-2009, 11:31 PM
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Originally Posted by Virmagicus View Post
Lat time i checked Wiki answers was not considered a training manual.
I actually never use Wikis. They are not a reliable source of information because they can be edited by anyone. Granted, they are technically peer-reviewed, but the reviewers don't necessarily know what they're talking about either. I was speaking from experience gained in my chemistry course. Engine oil was the focus our study related to hydrocarbons and viscosity.

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post #15 of 18 Old 10-25-2009, 11:50 PM
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Originally Posted by acarnes83 View Post
I actually never use Wikis. They are not a reliable source of information because they can be edited by anyone. Granted, they are technically peer-reviewed, but the reviewers don't necessarily know what they're talking about either. I was speaking from experience gained in my chemistry course. Engine oil was the focus our study related to hydrocarbons and viscosity.

Well quite frankly, i was just being faceshish.
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