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JeepGuyLJ 10-17-2006 04:40 PM

How many quarts of oil.....
Hey how are you guys doing, im going to stop taking my jeep to the dealer to get seviced and planing on doing my own oil change. I wanted to know how many quarts of oil does my 4.0 take i know i need to use 10w-30 and whats to best and i mean the best oil for my baby and oil filter. Thank you.


Jerry Bransford 10-17-2006 04:49 PM

Six quarts. I prefer Valvoline engine oils but any major brand is going to provide superb protection. Purolator's PureOne and AC-Delco's Duraguard are both superb filters, and Wix makes another great oil filter. I personally avoid Fram oil filters, their quality has taken a major downward slide in my personal opinion. :)

JeepGuyLJ 10-17-2006 05:01 PM

Hey thanks alot buddy now i know what to use. :cool:

AggieChris 10-28-2006 07:22 PM

I usually put 10W-30 in mine. Last time I changed the oil I only put 4.5 quarts and it said it was full. I don't know if it drained all out or what but it should take about 6 quarts if you drain it all out including the filter.

04moneypit 10-28-2006 08:30 PM

5.5 per the manual for a tj 4.0L, I run 5 quarts and it comes to just above the add line (1/8in.) and it runs just fine. Any older chevy motors will usually burn it to the add line and stop ( I know, not the same), But I have never had a problem running on the low mark. Just check your oil regularly, like yoiu're supposed to and you shouldn't have a problem.

Jerry Bransford 10-29-2006 01:32 AM


Originally Posted by 04moneypit
5.5 per the manual for a tj 4.0L, I run 5 quarts and it comes to just above the add line (1/8in.) and it runs just fine.

Since when did Jeep change the 4.0L's capacity from 6 to 5.5 quarts? Both my '97 TJ's owner's manual and the factory service manual agree with 6 quarts. You're the first I've ever seen to claim 5.5 quarts for that particular engine.

04moneypit 10-29-2006 09:38 AM

In the fluid capacities section of my owners manual (2004) it states 5.5 quarts for fluid cap. Don't know what changed year to year, unless they used a slightly shallower pan. I just changed the oil yesterday, that's why I quoted that spec.

Scoob 10-29-2006 05:03 PM

That's weird. My 06 says 6qts as well. I cant see them changing the engine capacities for just one year model.

amerijeep 10-29-2006 05:30 PM


Originally Posted by 04moneypit
Any older chevy motors will usually burn it to the add line and stop.

Man, I don't want to offend you, but this statement makes me realize you aren't really up on the topic.

All engines burn oil of some quantity. That's normal. I say again, ALL engines burn oil. They don't stop just because they feel like they have burned enough either.

Don't let anyone tell you different.

By the way, my 94 4.0 recommends 6 quarts. I am told that all 4.0 liter Wranglers take 6 quarts.

04moneypit 10-29-2006 07:15 PM

Ok, so I know I opened up a can o' worms with my posts on this topic, and my oil spec may be off (maybe meant 5.5 in the pan and didn't include filter in the capacities section) so on to the next -> A.J.-> when I said stop, I guess I should have clarified, I really meant reduced to an insignificant amount. My dad was a line mechanic for chevrolet in the 70's and dealt with many of these motors and I have owned a few myself, after the motor wears in after a couple of years, you get more leak by through the seals and rings. With a full system, the motor uses the oil until it evens itself out, and without any other system leaks, it will generally happen around the add line in those motors. As long as your system stays above the add mark, you are "safe" as far as system lubrication, and you still need to check your oil regularly. It's the people that seize a motor because they ran out of oil and say the last time I checked it it was okay. But that was 4 month's ago. I'm not saying motors don't use oil, most will use a very small amount during that oil's normal life, if it is using a large amount, the blue smokescreen appears behind said vehicle. No offense taken, but before I was a navy corpsman, I was a machinist mate and had to be very familiar with lubrication charts and various grades and viscosities of oil, running oil purification machines and such. I am well versed in the topic. I was just having a moment. Everyone's entitled, at least once in a while.

LV2SV 10-30-2006 12:04 PM

I am so happy to see this thread and all the responses! My dear hubby, who doesn't think I know what I'm talking about, swears we have the same engine(his 93 or 96 Cherokee) and take only 5 quarts. I said I thought the manual said 6 and he swears there is no way! :mad:
you just wait until i see him...

rrubano 03-14-2014 06:25 PM

Why does my 06 dipstick read about 1/4 over the full mark. I told the mechenic at Meineke that my jewp uses 5.5 quarts. But he was unfriendly and demanded I use 6qts. ShakIng my head in IL.

Shoe 03-14-2014 06:51 PM

All modern engines are designed to run fine +or - 1qt, so you're fine. My daughter's 4.0 is the same; it shows overfill with 6 qts.

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