Should I trust Jeep engineers on 0W-20?

[Jeep Junkie]

I saw this at my Jeep dealer, they are being honest now, no 10k intervals. $250 for 6 oil changes is not a bad deal. But God knows what oil they use, probably the cheapest Pennzoil, not even Platinum

View attachment 245865

I wonder what a Lube service is

 

[4WD]

Assume you have stop/start?
Suggested reading:

Post in thread 'Wrangler JL or JLU battery advice'

Apr 12, 2024

Just a heads up on internet information - some claim success by only removing an Aux14 ground and a fuse. Or just disconnecting the Aux14 and no jumper … I tried both and only got 12.7V
(are the YT boys even checking volts?)

So, after removing the Aux14 and installing the N1 to N2 jumper - I’m steady

(used a 4Ga x 12” starter lead as jumper)

Just to finalize -
Have received feedback from several JLU owners that the stock setup has some bad history - Google searches show as well …
The single H7 AGM has been stellar with the Aux14 battery gone
(Removed via fender liner, taped...

• 4WD

• 

 

[Jeep Junkie]

Assume you have stop/start?
Suggested reading:

Post in thread 'Wrangler JL or JLU battery advice'

Apr 12, 2024

Just a heads up on internet information - some claim success by only removing an Aux14 ground and a fuse. Or just disconnecting the Aux14 and no jumper … I tried both and only got 12.7V
(are the YT boys even checking volts?)

So, after removing the Aux14 and installing the N1 to N2 jumper - I’m steady

(used a 4Ga x 12” starter lead as jumper)

Just to finalize -
Have received feedback from several JLU owners that the stock setup has some bad history - Google searches show as well …
The single H7 AGM has been stellar with the Aux14 battery gone
(Removed via fender liner, taped...

• 4WD

• 

Yeah I have that but I disabled it with a Tazer

 

[4WD]

Yeah I have that but I disabled it with a Tazer

Not sure that matters if the Aux14 is still active - don’t think they become an issue for the first couple years …

 

[Jeep Junkie]

Not sure that matters if the Aux14 is still active - don’t think they become an issue for the first couple years …

Jeep has always had electrical issues so I am ready for them So far so good, 11,500 miles and it runs like a clock.

 

[4WD]

It will do what’s in this write up …
Some I know bought both batteries - but some are doing what I did.

Aux Switches Temporarily Unavailable Battery Charging: 7 Tips to Fix the Error

If your car batteries are 2-3 years old, you may get an error message on your dashboard that says, "Aux Switches Temporarily Unavailable Battery Charging." It happens when the main or auxiliary battery goes out

jeepmaven.com

 

[Jeep Junkie]

It will do what’s in this write up …
Some I know bought both batteries - but some are doing what I did.

Aux Switches Temporarily Unavailable Battery Charging: 7 Tips to Fix the Error

If your car batteries are 2-3 years old, you may get an error message on your dashboard that says, "Aux Switches Temporarily Unavailable Battery Charging." It happens when the main or auxiliary battery goes out

jeepmaven.com

THANK YOU

 

[ZeeOSix]

Trust Tribology.

 

[CKN]

I wonder what a Lube service is

There are some previous years trucks that have at least two lube points
( zerks) that I know of.

 

[EBruce]

I just want to change from Mobile1 0-20 to 5-20 because of the hot Florida weather. I'm assuming that would be OK as my 2019 Grand Cherokee is out of warranty. My mechanic said 0 to 5 on the lower # is OK but leave the top # 20 alone. He said it is because of the cam phasers wont work correctly with the thicker oil like 5-30. I wanted to use M1 5-30 because all my other vehicles use it.

 

[ZeeOSix]

My mechanic said 0 to 5 on the lower # is OK but leave the top # 20 alone. He said it is because of the cam phasers wont work correctly with the thicker oil like 5-30. I wanted to use M1 5-30 because all my other vehicles use it.

I highly doubt that. Has he ran a test program to verify that, or just running off of internet rumor and YouTube videos?

 

[Plumb Bob]

I just want to change from Mobile1 0-20 to 5-20 because of the hot Florida weather.

Florida is not hot for an ICE, and neither is the Death Valley. You can run 0W to 20W on the "lower #" in FL, and your Pentastar will be fine with 20, 30 or 40 grade ("Top #")

 

[02zx9r rev2]

Delete

Same, my 0w20 motors have 0/5W30

 

[radiometer]

My 3.6L JKR calls for 5W20. I dumped that as soon as I got home from the dealer and filled it with 0W30. I haven't looked back.

I just love this. It sounds just like what I do.

 

[Glenda W.]

I just love this. It sounds just like what I do.

same here

 

[kschachn]

I highly doubt that. Has he ran a test program to verify that, or just running off of internet rumor and YouTube videos?

Sometimes I wonder how much of that is just made up out of nowhere because someone wants to appear knowledgeable.

 

[radiometer]

Sometimes I wonder how much of that is just made up out of nowhere because someone wants to appear knowledgeable.

Oh, I am convinced we see plenty of this.

 

[OilStainedNapkin]

Pretty sure OP was banned (thank goodness). Let’s let this thread die fellas

 

[Triple_Se7en]

Should I trust Jeep engineers on 0W-20?​

Should you read the Detroit and Toledo newspapers recently, most of those engineers have been let go or laid off.
Stellantis is in a world of hurt nowadays.

 

[Jetronic]

Wait till the warranty is over before changing oil weights.

Why? If the oil viscosity is insufficient, you want to increase ASAP, and if it is sufficient, you don't ever need to change. Changing viscosity later on when damage is done is futile.

Going up in viscosity does not violate warranty anyway.