Oil Blends vs. Oil Life Indicator - Page 3 - 2014+ Jeep Cherokee Forums
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post #21 of 30 (permalink) Old 09-30-2015, 12:09 PM
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Wink wait...this IS meaningful....

Quote:
Originally Posted by Warloq View Post
No, what you said was: and you again tout your vast experience as the measure others should heed... As opposed to the 'science' of what synthetics actually do, esp in varied conditions.
whatever, I'm off to a more meaningful thread.
Last time. Never questioned the science of synthetics and what they are capable of. I'll repeat that because you have read it once and didn't comprehend it. Never questioned the science of synthetics and what they are capable of. I merely stated that with my vast knowledge and years of experience no one knows more than I do about synthetic motor oil and whether or not the average person will get any benefit out of using it. They won't. A good leather conditioner though......well worth the time and effort you'll put in using it. There is nothing better than soft supple leather that's been well cared for. I do prefer an all natural conditioner as opposed to the synthetic ones of course.
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post #22 of 30 (permalink) Old 09-30-2015, 12:37 PM
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Nothing like an oil thread to bring out the "experts".

Use the viscosity recommended by the manufacturer. Change it at the recommended intervals. Periodically check to make sure there's enough in there.

That's it.
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post #23 of 30 (permalink) Old 09-30-2015, 12:46 PM
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No matter how they start off, topics about motor oil invariably turn emotional. Fascinating

Just to address something said earlier about 5W20 being generally full synthetic or synthetic blend, I checked around quickly. Though this may have been the case some years ago (I recall this as well), today we have quite a few conventional 5W20s out there.

One possibly important detail hasn't been discussed here yet : the Chrysler MS6395 certification. Motor oil that goes into our Cherokees *should* meet this certification, according to our beloved manual.
I found this nice write-up, for 5W20 : http://jeepoffroadadventures.com/wp/?page_id=787
Further searching led me to find that Mobil 1 Super Synthetic now meets Chrysler MS6395

=============

Searching for 0W20 (for the Tigershark engine) yields fewer results, and most seem to be blends or full synthetics.

=============
=============

Dealerships usually purchase motor oil in bulk, and unless told otherwise, I am convinced they go with the cheapest fluids they can buy, meaning not a full synthetic or even a blend. 5W20 is now very popular so surely available in conventional bulk. Ask your service person and they should tell you what - exactly- they put in your engine.
For 0W20, they may carry bottles because of the rarity and chances are it would be a high quality oil (blend or full syn).

Anecdote : our FCA dealership lets customers supply their own oil for oil changes if they so desire. I've tried this at various shops and have been told *NO* because they make a living from profits on parts. I've even offered to let them charge me a full conventional oil change but use my jug of synthetic to satisfy my OCD (haha), but they refused. Needless to say I take my business elsewhere, or do it myself when possible. Most shops I see now charge an extra $30-$40 for synthetic, which is totally ridiculous and, quite frankly, insulting when you know what oil sells for... [/rant mode]

Anyhoots, enjoy your Jeeps and your oil
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Last edited by Mark_; 09-30-2015 at 12:48 PM. Reason: forgot a few words - duh
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post #24 of 30 (permalink) Old 09-30-2015, 02:12 PM
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I used to sit and listen to the "old" guys argue oil in my Dad's shop. This was in the early sixties and the debate raged over multi weight oil. We (they) had been used to using "summer weight" in the summer and "winter weight" in the winter. Then oil companies came out with "multi weight" and the argument was on. Multi weight claimed the ability to be thicker when warm and thinner when cold. My dad would just chuckle when one of the experts would exclaim "any dam fool knows that oil don't act like that..." And he'd say "I'll put what ever oil you tell me to in your engine, it's your car, your money, and your call ".
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post #25 of 30 (permalink) Old 09-30-2015, 09:16 PM
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I have a Chetokee Trailhawk 3.2 V6 (the larger engine), basic + factory tow package (heavy duty cooling system), 26,000 miles (factory order, delivered Feb, 2014). Oil change indicator had chage made at10,000 miles on the factory oil, multiple trips from OKC to Colo Spgs, CO, one with side trip up to Breckenride to ski. Second oil change on Jeep dealership oil and filter was, per the oil change indicator, at just over 7,500 miles, with more trips to CO, another side trip up to Breckenridge to ski, and one trip pulling a U-Haul car transport triler with an 89 Supra Turbo on board (those babies are heavy at 3,650 lbs drub weight). Thus, thr oil change indicator is more than a fancy clock that uses engine performance input. Perhaps, engine size to vehicle weight ratio, the 9-speed transmission, the heavy duty cooling system, what weight you may be pulling, change in altitude, weather conditions, weight of the ski gear one is hauling, etc. May have more of an affect than the grade/type of oil. The only true comparison would be identical conditions and use, with the only difference being the grade/ type of oil.
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post #26 of 30 (permalink) Old 09-30-2015, 09:55 PM
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Forgot to mention that the second trip, also, included a bit of trailing (3-days worth) near Leadville, with a group of other Jeeps and a couple of IH Scouts - that,too, would have a affect on the oil change interval - that trailing was one of the few where the lead Scout got high centered on a snow drift just out of reach of the hoist (got to be thankful that one in the group had a high-jacker, so someone could use a shovel to remove some of the snow ahead of the differential). and where a couple got stuck going down hill on a loose trail of stones.
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post #27 of 30 (permalink) Old 09-30-2015, 10:46 PM
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Quote:
Originally Posted by Supra jeep View Post
I have a Chetokee Trailhawk 3.2 V6 (the larger engine), basic + factory tow package (heavy duty cooling system), 26,000 miles (factory order, delivered Feb, 2014). Oil change indicator had chage made at10,000 miles on the factory oil, multiple trips from OKC to Colo Spgs, CO, one with side trip up to Breckenride to ski. Second oil change on Jeep dealership oil and filter was, per the oil change indicator, at just over 7,500 miles, with more trips to CO, another side trip up to Breckenridge to ski, and one trip pulling a U-Haul car transport triler with an 89 Supra Turbo on board (those babies are heavy at 3,650 lbs drub weight). Thus, thr oil change indicator is more than a fancy clock that uses engine performance input. Perhaps, engine size to vehicle weight ratio, the 9-speed transmission, the heavy duty cooling system, what weight you may be pulling, change in altitude, weather conditions, weight of the ski gear one is hauling, etc. May have more of an affect than the grade/type of oil. The only true comparison would be identical conditions and use, with the only difference being the grade/ type of oil.
Nice comparison. So, you had the factory fill oil life monitor go off at 10k with some long highway trips and then the second change went off 7.5k later with some towing and trail rides in there (and more highway)? That's good data.

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post #28 of 30 (permalink) Old 10-01-2015, 09:24 PM
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Just had my oil changed. 6% remaining on "oil life," and no indicators shown to me unless I pulled up that screen (had a red hue to the entire screen). Miles since last oil change, 7512. Approximately half the miles were pulling my near max weight travel trailer, so not sure if that is appropriate/proper mileage while using full synthetic oil....

Did decide though, to do my own oil changes from here on out. I had a $15 coupon AND a $20 check from Pennzoil to apply to an oil change, and still got nailed for $69 at Jiffy Lube. That is just nuts. Maybe I'll look around for a local shop, maybe they can do better!
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post #29 of 30 (permalink) Old 10-01-2015, 09:55 PM
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Quote:
Originally Posted by Ampmtnbkr2 View Post
Just had my oil changed. 6% remaining on "oil life," and no indicators shown to me unless I pulled up that screen (had a red hue to the entire screen). Miles since last oil change, 7512. Approximately half the miles were pulling my near max weight travel trailer, so not sure if that is appropriate/proper mileage while using full synthetic oil....

Did decide though, to do my own oil changes from here on out. I had a $15 coupon AND a $20 check from Pennzoil to apply to an oil change, and still got nailed for $69 at Jiffy Lube. That is just nuts. Maybe I'll look around for a local shop, maybe they can do better!
$11 for a Mopar filter and $30 for 6qts of Pennzoil Platinum synthetic. That's a no brainer vs $70+

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post #30 of 30 (permalink) Old 09-28-2016, 10:57 AM
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When i bought my Cherokee the dealership had synthetic oil change for life. $530. I normally own my vehicles for 10 years or more so i bought the package.

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