MoFo

If you are going to throw a pile of crap like that on the table, you should at least explain what you mean by it.

salad

rage much? Sure he could tell us what "quality" is but holy crap dude. Go get some sleep or something.

PocketsEmpty

I am running Mobil 1 5000mi stuff, 5w30, in my Jeep now. I'm thinking a 10w30 might be better here in Central PA, although it does get frigid cold. With a Napa Gold filter. I had a Fram on once, when I was n00bz, and actually sort of learned the hard way--oil pressure drop, engine makes a little noise and I poop my pants...after researching I got rid of the Fram immediately and it hasn't happened again.

I will probably switch to the Rotella next oil change.

Roler

Dear OP,

You might have noticed, that another oil war is easy to start when you ask about what oil is best. Many have gone before you and many will follow, unfortunately. You will most likely not get a bottom line answer and will get more and more confused as members of the forum will take their personal opinions and believes into the battle.

It's a never ending saga of people stating "my engine likes this", or "it runs much better on that". And at the end of the day, its a combination of oil, filter, oil change interval and driving characteristics.

But to reach out in all the confusion, there may be a bottom line, which is also the first line in the "what-oil-to-use-in-the-4.0": your 4.0 is designed for 10W-30. Is has always been like that. It's what the people who designed your engine had in mind, when they built it. so, thats what I run, and what I will always run. Why? Because its good enough. I'm not saying that other oils aren't good, I'm not even going there. All I say is, running what its designed for, and change on regular interval, is most likely the best you can do for your engine.

I shall rest now and let another oil war pass by. I hope you eventually will use what you feel is best.

belvedere

LOL, so recommending a quality oil is "a pile of crap"? Well, since you need it spoon-fed, here ya go:

http://www.pqiamerica.com/samplesummaryPCMOrev4test.htm

1. Click on the link above.
2. At the top of the table, click on the word "Grade".
3. Scroll down to the 5W30 oils.
4. Choose your favorite from those that have a green circle under "Status". Stay away from those with red or yellow circles.
5. If you want details on a particular oil, click on the orange circle under "Details", next to the name of that oil.

s346k

I run t6 rotella. I didn't notice a mileage drop vs reg 5w30. I change it whenever it looks like it needs it, typically 6-7k miles.

RTorrez1

I have to agree with you. I never went down in mileage when I went with the 15w 40 Rotella.

ksrummel

What climate do you live in? I'm in Indiana

hankthetank

this is a bit of an uneducated statement. a decent 10w30 is probably great in australia, but temps in canada can see quite the swing + to -. a winter rating of 0 or 5 would be more desireable. full synthetic even more so.

the 4.0 was designed to use an oil that obtains an expected viscosity at operating temp, not particularly 10w30 in a "good enough" brand.

and a poster who asks "is rotella t TRIPLE PROTECTION a good choice..." is not really looking for ignorant answers like "good enough" or "any dino oil".

Roler

Dear hankthetank, there is nothing ignorant about the answer that I gave. Nor did I specifically answer his question, for the simple reason I have no experience with rotella, and was providing him with the background regarding what oil is adviced for the engine. There is something like an owner's manual that has the familiar temp rated overview regarding the viscocities. If you 're under the impression that I advice " any good oil", I suggest you read my post regarding this a bit better and will even find that I already stated that I would not even be lured into the oil discussion about who thinks what is best. To many threads have been gone before this one on that.
So, next time, before you start posting things like you do now, I suggest you reconsider what you see as the "ignorant" part of somebody's post.

And btw, dear hankthetank, your first line of post #6 in this thread agrees with what is stated on the specs with 10W-30, so do you change your mind according to the thread your posting in?

https://www.cherokeeforum.com/f2/wha...ou-use-169624/

But by all means mate, give 'em some good advice if you know things better.
Good luck with it.

hankthetank

your taking another quote from another thread with a different posted intent. it's entirely out of context, and it appears you are confused; this is specifically about the brand in question. i'll dumb it down for you: your advice is ignorant of the original question. that easier for ya? thanks for coming out.

ryan8551226

You would not run a fram if you knew how bad they were constructed. They are crap.

rzldzl

ive ran frams since 2001 BECAUSE of the internet hate for them

magically my engines are still running

s346k

i don't know what to think of the fram hate. my father has been using fram filters since the 60s. he has never had an engine fail due to an oil filter related issue. i'd guess he has had over 30 different vehicles in that time span. with that being said, he has only owned one Cherokee. he had a 96 4.0 which he put 125k miles on. the same Cherokee now has over 300k on it...still using fram filters.

i personally have seen a few fram failures on highly modified engines. but i feel like those guys had it coming. who builds a $15k motor and regardless of brand...puts a $3 oil filter on it?

I've been a fan of wix since day one, long before the internet was cool. be it a $200 beater or a $45k vette, wix is what i will put on it. i even put them on my lawn mower.

bloddy mud

ive ran fram in all my vehicles and ive never had a engine selfdesruct. and I dump 10-30 in ALL my vehicles. my choice of rotella Valvoline or Castrol and that combo makes me a happy engine. oil is oil doesnt really matter what you use nowadays. just don't do anything stupid and change your iol with dollar store brand that stuff Is recycled