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post #1 of 20 Old 01-07-2012, 12:22 AM Thread Starter
reeds86xj
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oil...

Has a 96 4.0 181K. I was gonna run walmart brand synthetic 10w-30. What do you guys think? And how long should I got till the next change 5K?


1996 ZJ Laredo 182,000 4.0L Auto, 3" lift(upcoutry springs and 2"BB), 31x10.50 A/T's, Dana 30/35 3:55's, Cobra 29LTD, Thrush Turbo Muffler
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post #2 of 20 Old 01-07-2012, 12:30 AM
RED-85-Z51
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There are actually very few corporations that make motor oils, walmart oil is just a rebadged name brand oil. You should be fine, although all oils are not created equal, its not like a 4.0 is a high winding tight sport engine thats going to get bounced off its redline all the time an make long speed pulls...

Napa oil is rebadged Valvoline...

I dont know who makes walmarts oils, but I know walmart sells Mobil1 Full synthetic cheaper than anyone.
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post #3 of 20 Old 01-07-2012, 12:34 AM Thread Starter
reeds86xj
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So I go synthetic, conventional, or high mileage?

1996 ZJ Laredo 182,000 4.0L Auto, 3" lift(upcoutry springs and 2"BB), 31x10.50 A/T's, Dana 30/35 3:55's, Cobra 29LTD, Thrush Turbo Muffler
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post #4 of 20 Old 01-07-2012, 01:00 AM
RED-85-Z51
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That my friend is entirely a personal preference decision you need to make.

High mileage is like..formulated to help engines with over 75,000 miles on them, the base oil is the same, but the additive package is a little different.

Synthetic is really slick, works great in most applications, helps dissolve years of sludge in an engine, this can sometimes, on neglected engines, cause oil leaks as the sludge dissolves and oil is allowed to seep...but this is more or less a rarity, but it does happen sometimes.

Conventional, well...the engine has lasted 181K miles on it without a problem..right? Its cheaper to buy, and the engine is familiar with it.

Viscosity, depends on the climate you are in..if you are in a cold climate, a thinner oil is suggested to ease cold starting and to allow faster pump up times. A thicker oil is preferred in hot climates, and on worn engines...

The oil debate is a discussion that rages on in all forums, small engine, automobile, off road, racing, 2 stroke..wankle engine, turbo charged, whatever...people have an opinion on what oil to use and why to use it. Sadly, few people ever agree, and there is mostly hear-say and and opinions running rampant.

In my mustangs, Ford says to use 5W20, I personally use a 5W20 Synthetic to help protect the engine at 6000rpms+.

In my 5.2 ZJ, I use conventional 10W40, it has 226,000 miles on it...I prefer napa brand (valvoline) as its cheaper than valvoline in the valvoline bottle..

I change my oils between 3000 and 5000 miles, and I use Napa GOLD filters (wix premium).
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post #5 of 20 Old 01-07-2012, 01:08 AM
zander21510
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I agree with above. I personally recommend Rotella T6 full synthetic. 5w40. They have it at Walmart in Gallon and quart sizes. A tapping noise I thought was normal completely disappeared after the oil change If you want to spend the little extra money try the HDEO, many people swear by it, and it is packed with additives and detergents since it is for diesel engines. Hopefully that means my jeep's insides will be squeaky clean lol

No matter what oil you use though, I would insist upon Pureolator pureONE filter. Its the best money can buy and the filter is probably the most important part of the oil system.
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post #6 of 20 Old 01-07-2012, 08:02 AM
WJWKXJZJ
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You can do the I-6 engine an additional favor by using a larger filter. Adds about an extra half quart of oil capacity and more than doubles your filtering area, which helps with pressure drop across the paper and filtering capacity.

Motorcraft FL-1A
Purolator P30001
Fram PH-8A

It's a Ford small/big block filter with 3/4 x 16 thread and same seal width/diameter; these listed are all equivalent, there are more equivalents but these come to mind.

1996 XJ Country 4.0 I won't give it up!
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post #7 of 20 Old 01-07-2012, 12:28 PM Thread Starter
reeds86xj
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I live around Philadelphia, so the winters can get 20 degrees F. And I was wondering if thr rotella T6 would be too thick for 20 degree weather?

1996 ZJ Laredo 182,000 4.0L Auto, 3" lift(upcoutry springs and 2"BB), 31x10.50 A/T's, Dana 30/35 3:55's, Cobra 29LTD, Thrush Turbo Muffler
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post #8 of 20 Old 01-07-2012, 01:01 PM
Candymancan
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I use Castrol GTX dino oil, and Purolator Pure one filters on both Jeeps. Change the oil every 4k miles.

2013 6.2 V8 Camaro SS 30k
98 5.9 V8 ZJ 180k
98 4.0 I6 ZJ 240k
90 5.9 SJ Grand Wagoneer 110k
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post #9 of 20 Old 01-07-2012, 01:07 PM
PolkaPower
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Quote:
Originally Posted by reeds86xj View Post
I live around Philadelphia, so the winters can get 20 degrees F. And I was wondering if thr rotella T6 would be too thick for 20 degree weather?
T6 is 5w-30 or 40 right? Although I have read that it's thicker than normal oil it should be fine. If I lived where it got below 0 I would use a 5w oil. When you get to the 20w is when I would worry that it could be to thick for the pump on start up. But everyone has a different opinion.
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post #10 of 20 Old 01-07-2012, 02:03 PM
zander21510
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Quote:
Originally Posted by PolkaPower View Post
T6 is 5w-30 or 40 right? Although I have read that it's thicker than normal oil it should be fine. If I lived where it got below 0 I would use a 5w oil. When you get to the 20w is when I would worry that it could be to thick for the pump on start up. But everyone has a different opinion.
T6 is 5w40. I run it now, its great.
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post #11 of 20 Old 01-07-2012, 04:42 PM
LordHobbit
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Quote:
Originally Posted by WJWKXJZJ View Post
You can do the I-6 engine an additional favor by using a larger filter. Adds about an extra half quart of oil capacity and more than doubles your filtering area, which helps with pressure drop across the paper and filtering capacity.

Motorcraft FL-1A
Purolator P30001
Fram PH-8A

It's a Ford small/big block filter with 3/4 x 16 thread and same seal width/diameter; these listed are all equivalent, there are more equivalents but these come to mind.
don't forget Wix 51515!

93 red ZJ 190k 4.0. Spent more money than I should have ...

Isn't red the only color a vehicle should be?
If at first you don't succeed, use more speed.
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post #12 of 20 Old 01-08-2012, 05:50 AM
cdaniels85
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I can't believe I never knew an FL-1A was a direct fit.
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post #13 of 20 Old 01-08-2012, 10:31 AM Thread Starter
reeds86xj
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So will the 5w-40 be okay in cold weather?

1996 ZJ Laredo 182,000 4.0L Auto, 3" lift(upcoutry springs and 2"BB), 31x10.50 A/T's, Dana 30/35 3:55's, Cobra 29LTD, Thrush Turbo Muffler
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post #14 of 20 Old 01-08-2012, 10:32 AM
PolkaPower
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Quote:
Originally Posted by reeds86xj View Post
So will the 5w-40 be okay in cold weather?
That sounds great for cold weather.
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post #15 of 20 Old 01-08-2012, 10:08 PM Thread Starter
reeds86xj
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Location: Essington 19029
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Got the rotella t6 today and a mopar filter. The 4.0 holds 6 quarts right?

1996 ZJ Laredo 182,000 4.0L Auto, 3" lift(upcoutry springs and 2"BB), 31x10.50 A/T's, Dana 30/35 3:55's, Cobra 29LTD, Thrush Turbo Muffler
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