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I was going to change the oil at 1,000 miles but dealer said I’d do harm. True or false?

ShadowsPapa

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My only problem with bringing it into dealer for an oil change at 1k miles is that I'd be afraid they might simply tell you they changed it. But I worry about that stuff and that's why I change my own oil. I do wonder what I'm going to do when it's transmission time though because I'm not changing that fluid myself.
Dealers here send you videos of the work being done with proof it's your vehicle. They show the actual vehicle inspection as well
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Bandit’s Lair

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Dealers here send you videos of the work being done with proof it's your vehicle. They show the actual vehicle inspection as well
Same here with Ford. Havent had the Jeep into that dealer yet. Kinda cool to see the process.
 

Purple Reign

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Wife is a new owner of a 26 Gladiator. Question for you all. Where is this oil monitor indicator located? Is it something she can pull up on the drivers dash? If so how? The Owners manual that came with the truck is not very 'detailed" about some 'stuff".
Thanks
 

ShadowsPapa

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Same here with Ford. Havent had the Jeep into that dealer yet. Kinda cool to see the process.
I suppose there are enough places out there that are suspect, they want to get ahead of that and/or prove - see, we actually do it. Last video I got was them showing they actually installed my matching wheel for the spare, and rotated it into the mix for a 5 tire rotation. Figured I might as well let them do it since they had things apart anyway to swap wheels. They show brake pad thickness, checking tire tread depth, the oil draining, filter being replaced, all of it.
 

ShadowsPapa

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Wife is a new owner of a 26 Gladiator. Question for you all. Where is this oil monitor indicator located? Is it something she can pull up on the drivers dash? If so how? The Owners manual that came with the truck is not very 'detailed" about some 'stuff".
Thanks
Use the buttons on the left front side of the steering wheel. If it currently shows the speed, then down one, then left or right as needed to show the oil life remaining. My oil analysis tests over the years have shown what Lake Speed Jr. has said - it's pretty darned accurate. GM came up with it many years ago.
 

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My only problem with bringing it into dealer for an oil change at 1k miles is that I'd be afraid they might simply tell you they changed it. But I worry about that stuff and that's why I change my own oil. I do wonder what I'm going to do when it's transmission time though because I'm not changing that fluid myself.
The vast majority of stealerships are shady AF. Oil changes on these Jeeps are so easy and quick that I'm not sure why you would waste your time taking them in.
 

ShadowsPapa

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The vast majority of stealerships are shady AF. Oil changes on these Jeeps are so easy and quick that I'm not sure why you would waste your time taking them in.
Because most aren't shady and step outside of your world to the world of the majority of jeep and car owners. Age, health, location, tools, HOAs and more.
 

Dilly’S Willy

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Sorry, that 10K miles is not marketing BS. Modern synthetics can go that long with no issues. At least the quality oils can. I've gone many times over 7,000 miles and results come back "you could have gone farther". Oil chemistry and viscosity was fine, and wear metals not a problem.

Other than when I do an engine build, all of my factory engines have gone a couple thousand before the first change.

There's no reason other than personal preference for those short 3,000 oil change intervals. The engine won't last any longer or shorter. It's a feel good thing and nothing else. Even Lake himself said that the oil life monitor is VERY accurate. He's compared to actual oil tests. For some, such as myself, the OLM will hit 0% before 10,000 miles, closer to 8,000 miles - towing, shorter drives and so on - they are based on science.
It's a scare tactic to suggest anyone must or should change the oil so soon. It won't last longer, or last less miles. There's no reason to not change the first oil before 2,000 miles, no reason not to. There's more crap floating around about oil and changes than fact, even at the dealerships.

These oil threads and oil change interval threads always become a load of BS with all of the "it will be better with........." things. You can change the first oil at 100 miles if you want, or 5,000 and it won't matter much. Does anyone here actually think that the MAJORITY of all new vehicles sold get their oil changed before the first interval in the book? No. Many will go 5,000-10,000 on the first oil and each change after that. Forums are far far far from representative of what's REALY out there, and yet forums seem to believe they speak for majorities. Hardly, not even close.

I can't even begin to recall all of my cars and trucks that have gone over 100,000 miles, even 200,000 miles on original engines.

If you break engines in as I've outlined here for over 5 years, you won't have an issue - and break-in happens much faster than people believe. When I return a car to the owner after an engine rebuild, it is broken in and they can drive it in any way they wish, as long as they vary the RPM in the first miles.
You focused on when to change it for break-in, but failed to address the consumption rate. I don't care if you CAN use the same oil over 10k miles...because that's irrelevant when you run the engine dry during that OCI. The fact engines are being "designed" to consume all or more of their oil capacity within their OCI is absurd. Yeah, let me keep oil in the cargo area of my brand new vehicle because it is allowed to consume as much as a worn out engine with leaks and/or bad rings could and usually do.

Generally, engines that aren't broken in a certain way, then not maintained a certain way wear out faster. I've notice in the several engines I've built (broken in differently) do NOT wear out the same even when maintained the same. Generally the engines which are broken-in aggressively, with high RPM/Load early on are the first to wear out/fail compared to a longer/more gentle process.
-Again, if you're racing or running it on occasion then changing fluids/parts often, you probably won't care vs power right now...vs the person who wants their vehicle to last for 300k+ miles.

And again, that's my experience, and the similar experience of many others I've had this discussion with in person. Not everyone may share this experience, or care to, but knowledge is power and we should factor all info.
 

Jrgunn5150

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I drove my original oil right to 10k, and then did it 6 more times after that, and will continue to do it for the next 4-5 years.

But you can change your oil daily if it makes you happy.

Just know that there's absolutely no science supporting it, nothing but a bunch of feelings.
 

g2020

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Someone needs to mention what's in the book, so here it is...

The oil & filter change advice shown in two different versions of the Jeep owner's manual (OM), or "the book", is summarized in Motor Oil & Oil Filter Service Intervals. The range in the book is between 4,000 miles for severe duty and 10,000 miles for normal driving ("daily driver"), not to exceed one year or 350 hours. In the book, there is no mention of early oil changes for engine break-in. See "Engine Break-in Advice from the Owner's Manual" below.

The most common mileage service interval that I've seen, for a mixed-use vehicle that is taken off-road or used for towing, is 5,000 miles. For a daily driver, the most common recommendation I've seen is 7,500 miles (or earlier if indicated by the OCIS). There are some owners who change the oil & filter at 50% oil life remaining as indicated by the OCIS.

Or, you can skip the details and just use the Oil Change Indicator System (OCIS). It tells you when to change the oil & filter regardless of the type of driving.

Engine Break-in Advice from the Owner's Manual
  1. Drive moderately for the first 300 miles.
  2. After the first 60 miles, speeds up to 50 or 55 mph are desirable.
  3. While cruising, brief full-throttle acceleration...contributes to a good break-in.
  4. Wide-open throttle acceleration in low gear can be detrimental and should be avoided.
Source: Page 156 of the online version of the 2020 Gladiator owner's manual, downloaded in April 2025.

Jeep Gladiator I was going to change the oil at 1,000 miles but dealer said I’d do harm. True or false? 1775576227340-xm
 
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g2020

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In all my vehicles over the years, when bought new, and used as well, I’ve changed out oil with Amsoil Signature at 1k miles and immediately when used. I’ve used and still use Amsoil Signature synthetic for the life of the vehicle or as long as I’ve owned the vehicle. I’ve done this for 40 years with the confidence that my investment is protected. Amsoil signature is a 1 year, 25k oil and in my opinion the best.
I am not disagreeing with you about AMSOIL Signature Series motor oil. However, someone who switches to AMSOIL Signature Series should know the details. For a vehicle that is past warranty and is taken off-road, the price-per-mile and time savings can't be beat.

Powertrain warranty: Because this motor oil is not API Certified, I recommend waiting until after the 5/60 power train warranty expires to consider using it.

For the (up to) 15,000-mile service interval, the AMSOIL oil & filter, shown below, must be used together. There is only one AMSOIL filter available for the Gladiator, and the mileage interval for the filter limits the mileage interval for the motor oil.

AMSOIL Signature Series 100% Synthetic Motor Oil SAE 0W-20, product code ASMQT-EA
  • The (up to) 25,000-mile service interval, stated on their website, is not for a Jeep Gladiator
  • Up to 15,000 mi / 700 hrs / 1 yr, including off-road, for Jeep Gladiator
  • Up to 12,000 mi / (number of hrs not restated) / 1 yr when used with other brand of oil filter
  • Reminder: OEM limits are 4,000 mi / 350 hrs / 1 yr for severe duty, and 10,000 mi / 1 year / 350 hrs for normal driving
  • Maintenance requirement for guarantee in DATA SHEET: "Check oil regularly to maintain proper fill levels."
  • This motor oil is API-compliant, but not API Certified (see specification #5)
AMSOIL Oil Filter; product code EA15K19-EA
  • Up to 15,000 mi / 1 yr, including off-road, for Jeep Gladiator (number of hours not stated)
  • OEM service intervals when used with other brand of motor oil
Warranty/Guarantee

The separate oil & filter warranties cover damage to other parts. Keep receipts, take pictures during each oil & filter change, have the old (and new) oil tested by a lab, and maintain the oil level. As described below, the separate oil & filter guarantees are in addition to the warranties.

The final sentence in both the AMSOIL Limited Warranty - Lubricants, and the AMSOIL Limited Warranty - Filters, provides that a separate, specific, and written AMSOIL warranty may supplement or supersede the general warranty. Both the Signature Series motor oil DATA SHEET and the oil filter DATA SHEET provide a specific guarantee of "up to" 15,000 miles, 700 hours of operation, or one year, whichever comes first, for (normal or) severe service, including off-road use.

Opinion

Caution:
Exceeding OEM limits or ignoring OCIS alerts will void the 5-year / 60,000-mile Jeep power train warranty.

Recommendation: Have a sample of the motor oil in your vehicle tested, at a shorter interval such as 40% of Oil Life remaining, by a reputable lab such as Blackstone Laboratories Inc or POLARIS Laboratories (AMSOIL uses POLARIS). The test results will help you determine whether this motor oil delivers the full value stated in the guarantee and may be useful after the OEM warranty expires.

Note: This motor oil is API compliant, but it is not API licensed.
Note: The AMSOIL Oil Filter is currently in short supply due to the First Brands bankruptcy. A good way to determine when the shortage has ended is, of course, to check whether the AMSOIL filter can be purchased through the AMSOIL website.

If I were AMSOIL, this is how I would advertise to Jeep Gladiator owners:

If your vehicle is out of warranty, you frequently use it for severe duty, and you are not concerned about compliance licensing or mileage intervals, AMSOIL SS offers the best DIY cost-per-mile by a long shot. For off-roading or trailer towing, no other motor oil even comes close to matching the (up to) 15,000-mile guarantee. The price of one AMSOIL SS & AMSOIL filter change ($117) is 26% lower than the 3.75 Mobil 1 EP oil & filter changes ($158) that would be required to travel the same distance under severe service (see Table 1.5 in Links to Prices). For an AMSOIL member, the price ($91) is 42% lower. As for time savings, one AMSOIL SS oil & filter change may last nearly as long as four oil & filter changes using Mobil 1 EP. Also, for taxis and other vehicles that frequently operate at idle or low rpm, using AMSOIL SS doubles the engine run time from 350 hours to 700 hours. The only catches are 1) you must use the AMSOIL filter, and 2) you have to "check oil regularly to maintain proper fill levels", which might bump the cost up by a quart. To maintain the OEM warranty on your vehicle while using AMSOIL SS, change the oil & filter within OEM limits and observe OCIS alerts. You will not reap the benefit of the longer severe service interval during the OEM warranty period, but your engine will be well protected. Never exceed one year between oil & filter changes. Always change both oil and filter. Note: I have no affiliation with AMSOIL. This section was posted in June 2026.
 
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Bandit’s Lair

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So if you change to a Baxter setup you shouldn’t use the Amsoil long term stuff? Or can you just change the filter every 5k miles without doing the oil?
 

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I am not disagreeing with you about AMSOIL Signature Series motor oil. However, someone who switches to AMSOIL Signature Series should know the details. For a vehicle that is past warranty and is taken off-road, the price-per-mile and time saved can't be beat.

Powertrain warranty: Because this motor oil is not API Certified, I recommend waiting until after the 5/60 power train warranty expires to consider using it.

For the (up to) 15,000-mile service interval, the AMSOIL oil & filter, shown below, must be used together. There is only one AMSOIL filter available for the Gladiator, and the mileage interval for the filter limits the mileage interval for the motor oil.

AMSOIL Signature Series 100% Synthetic Motor Oil SAE 0W-20, product code ASMQT-EA
  • The (up to) 25,000-mile service interval, stated on their website, is not for a Jeep Gladiator
  • Up to 15,000 mi / 700 hrs / 1 yr, including off-road, for Jeep Gladiator
  • Up to 12,000 mi / (number of hrs not restated) / 1 yr when used with other brand of oil filter
  • Reminder: OEM limits are 4,000 mi / 350 hrs / 1 yr for severe duty, and 10,000 mi / 1 year / 350 hrs for normal driving
  • Maintenance requirement for guarantee in DATA SHEET: "Check oil regularly to maintain proper fill levels."
  • This motor oil is API-compliant, but not API Certified (see specification #5)
AMSOIL Oil Filter; product code EA15K19-EA
  • Up to 15,000 mi / 1 yr, including off-road, for Jeep Gladiator (number of hours not stated)
  • OEM service intervals when used with other brand of motor oil
Warranty/Guarantee

The separate oil & filter warranties cover damage to other parts. Keep receipts, take pictures of the job, have the old (and new) oil tested by a lab, and maintain the oil level. As described below, the separate oil & filter guarantees are in addition to the warranties.

The final sentence in both the AMSOIL Limited Warranty - Lubricants, and the AMSOIL Limited Warranty - Filters, provides that a separate, specific, and written AMSOIL warranty may supplement or supersede the general warranty. The Signature Series motor oil DATA SHEET and the oil filter DATA SHEET provide a specific guarantee of "up to" 15,000 miles, 700 hours of operation, or one year, whichever comes first, for (normal or) severe service, including off-road use.
I don’t disagree with anything you posted on your tech sheet reproduction. Some Amsoil formulas are API certified, some are not but the reason the Signature series for example is not API certified is because of the robust reformulation Amsoil does followed by rigorous testing, it’s costly to recert every time. But yes, it’s a personal choice and I only offered up my 40 years+ of experience resulting in zero issues plus data and pics I’ve seen of engine head rebuilds after 100-200k miles with virtually no wear on piston walls indicating protection is robust. But, the warranty thing is a consideration; with manufacturers looking for any excuse not to cover issues (you stood on the left foot instead of the right foot and sneezed ☺), if a person isn’t comfortable with in warranty amsoil oil changes to the best synthetic, that is cool. Sometimes covering your personal bases is the best choice for many.
 
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moparnut72

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I'll add my 2 cents. We bought a new '19 Grand Cherokee with the Pentastar. After a short period of time about 1,000 miles I thought I had better check the oil. It didn't even register on the dipstick, I was of course in a panic. It took three quarts, I figured we were in for a warranty engine replacement or the rings hadn't seated. I filled it to spec and checked at a frequent interval afterward. It never used another drop. I still wonder what happened, was it not filled in initially or did it use a lot during break in or ? I guess I will never know we traded it in 2024 for a leftover '23 Grand Wagoneer with a 6.4 Hemi. I have had my new Gladiator for a month and a half, watching the oil level with no usage.
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