Fluids

[harrish24]

Im sure there's 100 threads here about all sorts of fluids, but rather than scavenging for information that leaves me questioning, I'd like to address them all here.

What is everyone using for Engine Oil, Coolant, Transmission Fluid, Differential Oil, Fuel Additives, and anything else? And why? Who gets the best deals from where? What makes one fluid/brand better than another? If Im missing any other obvious questions, please tell me!

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[thedeatons]

MOPAR, because it's easiest. One stop shop, at the dealer, getting manufacturer recommended fluids. Change them at the recommended intervals and you don't need much more... There are TONS of boutique fluids out there, it's a black hole of research, and in the end you'll be running all over town or ordering from 5 different places... Just a waste of precious time. In the end you won't keep your Jeep forever, and the next guy will take it to Jiffy Lube, so why bother lol...

 

[harrish24]

MOPAR, because it's easiest. One stop shop, at the dealer, getting manufacturer recommended fluids. Change them at the recommended intervals and you don't need much more... There are TONS of boutique fluids out there, it's a black hole of research, and in the end you'll be running all over town or ordering from 5 different places... Just a waste of precious time. In the end you won't keep your Jeep forever, and the next guy will take it to Jiffy Lube, so why bother lol...

I’d like to bother because my last jeep was supercharged and ended up cracking the block, and my new JL 3.0 ED is (soon to be) deleted. I just want to take care of my car so it’ll take care of me back. I have every intention of keeping this car for its lifespan and passing it down to my kids one day, or just having an offroad toy. I want what’s best, not what’s easiest

 

[The Duke01]

Im sure there's 100 threads here about all sorts of fluids, but rather than scavenging for information that leaves me questioning, I'd like to address them all here.

What is everyone using for Engine Oil, Coolant, Transmission Fluid, Differential Oil, Fuel Additives, and anything else? And why? Who gets the best deals from where? What makes one fluid/brand better than another? If Im missing any other obvious questions, please tell me!

I have always used Amsoil in all my vehicles including my Harley’s. Best oil in my opinion. They have fluids for engine, diffs, and transmission.

 

[Aonarch]

Oh wow another oil thread. Two this week.

 

[Nash_Dj]

I have every intention of keeping this car for its lifespan and passing it down to my kids one day, or just having an offroad toy. I want what’s best, not what’s easiest

Sincerely, good luck with your plan...
My first one blew the engine at only 2000km over my 100,000 km warranty, and being only 4.5 yr old.
All "recommended" and expensive maintenance and fluids changes diligently and meticulously performed, the lifter pin broke and caused the havoc inside...

 

[SlickRicksWilly]

@Jeep Junkie , Are you gonna let this guy move in on your territory like this?

 

[kah.mun.rah]

Engine: Pennzoil
Coolant: Mopar
Transmission and transfer case: Mopar
Differential: Royal Purple
Cooking: Olive

Best deal: typically Amazon

Disclaimer: I'm not saying these are the best, but just answering the question. My opinion is that it isn't as much as what brand you use vs how often you change it.

 

[Jeep Junkie]

Im sure there's 100 threads here about all sorts of fluids, but rather than scavenging for information that leaves me questioning, I'd like to address them all here.

What is everyone using for Engine Oil, Coolant, Transmission Fluid, Differential Oil, Fuel Additives, and anything else? And why? Who gets the best deals from where? What makes one fluid/brand better than another? If Im missing any other obvious questions, please tell me!

PUP, 0W-20 in winter and 5W-30 in other months Mopar for other fluids and Mopar filters

 

[Tr4ckD4ys]

Im sure there's 100 threads here about all sorts of fluids, but rather than scavenging for information that leaves me questioning, I'd like to address them all here.

What is everyone using for Engine Oil, Coolant, Transmission Fluid, Differential Oil, Fuel Additives, and anything else? And why? Who gets the best deals from where? What makes one fluid/brand better than another? If Im missing any other obvious questions, please tell me!

For someone who is looking for the BEST and not the EASIEST, it’s surprising you would try to take the EASY route and start yet another fluids thread. If you want the BEST information you will have to use the search function to find the prime threads on each fluid, and there you will find all the beautiful reasons why those fluids are better (or not). Same goes for batteries, gears, shocks, diffs, …

what you are going to get with your thread here is just distilled opinion without all the justification or science behind it.

 

[harrish24]

For someone who is looking for the BEST and not the EASIEST, it’s surprising you would try to take the EASY route and start yet another fluids thread. If you want the BEST information you will have to use the search function to find the prime threads on each fluid, and there you will find all the beautiful reasons why those fluids are better (or not). Same goes for batteries, gears, shocks, diffs, …

what you are going to get with your thread here is just distilled opinion without all the justification behind it.

The problem is I work full-time and go to night school full-time. I have enough time to post to ask a question, and try to receive feedback. I don't have 15 or 20 minutes to sit here and try to find 1 good post about fluids. I thought this forum website would be helpful, but this has proven otherwise, and that people have no incentive to help one another.

 

[Tr4ckD4ys]

The problem is I work full-time and go to night school full-time. I have enough time to post to ask a question, and try to receive feedback. I don't have 15 or 20 minutes to sit here and try to find 1 good post about fluids. I thought this forum website would be helpful, but this has proven otherwise, and that people have no incentive to help one another.

Oh boy… can you be a bit more dramatic?
If your situation is as you say, then I recommend using “ChatGPT 5.1 Thinking” mode and specifically ask it to summarize the threads on jlwranglerforums.com related to fluids. I’ve done it before in it was 95% correct in its distillation of information. For example, you could ask it “According to forum members, what’s the definitive best engine oil for my engine with xxx miles.”

This will save you lots of time and prevent you from just getting opinion without knowing whether that opinion serves your definition of “best”.

Or to give to you more candidly: The best advice you can get is already here. You just don’t have the time to find it. You can’t expect though that anybody here is going to recite the entire wealth of knowledge of this forum regarding each fluid in your thread.

 

[Rhinebeck01]

The problem is I work full-time and go to night school full-time. I have enough time to post to ask a question, and try to receive feedback. I don't have 15 or 20 minutes to sit here and try to find 1 good post about fluids. I thought this forum website would be helpful, but this has proven otherwise, and that people have no incentive to help one another.

@harrish24

Your comment "this forum website would be helpful, but this has proven otherwise, and that people have no incentive to help one another." is absolutely frigging laughable at best.

You started a thread and asked for hand holding because you are too lazy to forum search and read. Suggest go seek help on FB.

 

[harrish24]

Oh boy… can you be a bit more dramatic?
If your situation is as you say, then I recommend using “ChatGPT 5.1 Thinking” mode and specifically ask it to summarize the threads on jlwranglerforums.com related to fluids. I’ve done it before in it was 95% correct in its distillation of information. For example, you could ask it “According to forum members, what’s the definitive best engine oil for my engine with xxx miles.”

This will save you lots of time and prevent you from just getting an opinion without knowing whether that opinion serves your definition of “best”.

Or to give to you more candidly: The best advice you can get is already here. You just don’t have the time to find it. You can’t expect, though, that anybody here is going to recite the entire wealth of knowledge of this forum regarding each fluid in your thread.

Like I said, I thought this would be a good resource to ask for help from people with similar mods and real-world feedback. Again, people don't fail to disappoint me. Not hard to be helpful. If you don't have something to say to help, don't bother. Not hard to be nice.

 

[Tr4ckD4ys]

@harrish24

Your comment "this forum website would be helpful, but this has proven otherwise, and that people have no incentive to help one another." is frigging laughable at best.

You started a thread and asked for hand holding because you are too lazy to forum search and read. Suggest you go seek help on FB.

lol I tired to be nice about it but you beat me to it

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