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Unread 07-01-2010, 03:21 PM   #61
couesfanatic
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Quote:
Originally Posted by Zen View Post
MCCC enters the engine as a foam. (read compressable) Seafoam enters as a liquid. Liquids are noncompressable. If you overload the engine what happens?
I think I will go with MCCC. LOL thanks

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Unread 07-01-2010, 05:54 PM   #62
Knuckelhead
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Quote:
Originally Posted by bmaner View Post
I run Castrol GTX 10W-30
Same here...
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Unread 07-01-2010, 10:10 PM   #63
CaptGeno
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i used royal purple 10w-30, its my 1st jeep so i have been pampering it, but today i tried mobile 1, the store only had 3 qtrs of royal purple so far so good
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Unread 07-01-2010, 10:11 PM   #64
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Originally Posted by steamnsteel View Post
That horse ain't drink'n either!
Nope! Not until I see more proof.
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Unread 08-31-2010, 08:44 PM   #65
Zetto
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Update: I no longer run Mobile 1 10w30 and will be switching to a 10w30 with ACEA A3 ratings after reading "My oil is killing my engine!" thread.
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Unread 08-31-2010, 09:09 PM   #66
baldeagle1
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I use rottella(spelling) diesel oil. If you have a 4.0 be sure to use oil w/phos and zinc at a high rating.
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Unread 08-31-2010, 10:22 PM   #67
LiveAndLearn
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what should I run in a 6 banger in Atlanta for the fall/ winter?
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Unread 09-01-2010, 12:20 AM   #68
JustJeepin85
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just gonna say i hate absolutely hate sythetic and pretty much anything thats not produced by valvaline. i use valvaline in my bike and my jeep.

i use straight 30 weight in the bike nearly year round had it 5 years and the bike has ~60k miles on it without a rebuild (yes in dear need of a rebuild but i refuse can still do 140mph)

the jeep i use 10w30 in the winter for the colder mornings and 10w40 during the summer for the more intense heat ive not had any problems.


quakers state is a no go and so is synthetic in my book ive seen dirty *** heads from both, but thats not to say valvaline doesnt have its probs too, ive just not found them.
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Unread 09-01-2010, 02:03 PM   #69
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Quote:
Originally Posted by rottenrobert View Post
10w 30 pennzoil here and a napa gold or wix filter. I also heard that wix makes napa's filters.
Yes, they do. Iuse the NAPA Gold (WIX) filter.
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Unread 09-01-2010, 02:15 PM   #70
06WranglerX
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BOOOOOO to no poll, but I use 10-30 dino, 76k on my jeep and the engine is running strong with regular pil changes and norm dino oil. I run the jeep in the bitter cold northeast, as well as hot hunid summers and conventional oil has not wronged me.
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Unread 09-01-2010, 02:21 PM   #71
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i use castrol gtx high mileage. 10W 30 in the summer and 5w 30 in the winter
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Unread 09-01-2010, 02:59 PM   #72
MattJeep
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I also use the Rotella 10-30w with a Bosch filter. I don't know what the previous owner had in there but the oil psi went back to normal (little over 40) and it stopped blanking out at 0 when slowing down and making turns. (?)
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Unread 09-01-2010, 03:11 PM   #73
daveg13try2
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Regular ol' Valvoline 10w-30 in the summer, 5w-30 in the winter. The 4.0l is a 40 year old tractor engine. Keep something in it, change it on a regular basis, and you're not going to have an engine oil related failure. I've personally seen a 4.0 go through hell, ie no oil on the dipstick. Filled it back up and ran fine for many many more miles.
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Unread 09-01-2010, 03:34 PM   #74
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Quote:
Originally Posted by rickyantanies View Post
i use castrol gtx high mileage. 10W 30 in the summer and 5w 30 in the winter
Same here .. but I use 5w-30 all year round
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Unread 09-01-2010, 03:41 PM   #75
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Quote:
Originally Posted by Hunter0103 View Post
what should I run in a 6 banger in Atlanta for the fall/ winter?
10w30 is good all year round in the South, IMHO.

I typically use whatever good quality oil is on sale at the time and Motorcraft filters.
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