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Snake oil. Page 251 of online version of 2020 owner's manual:

I had the thermostat housing replaced at 49K / 6 yrs only because I was getting a cooling system flush. Bought the part at a dealership and handed it to my independent mechanic. I bought a thermostat seal with the intent of reinstalling the original thermostat when the replacement fails...

The ZF 8HP75 transmission, for the diesel, is made in Germany. This could have been one of the many political factors involved.

I agree that laissez-faire is best for the consumer as long as poor ethics don't enter the picture. Also, the point about Champion Labs was not to put them on a pedestal, but rather to let folks know that they were part of this shake-up. The FRAM ULTRA engine air filter & FRAM ULTRA oil filter...

Champion Labs is/was the private label manufacturer of Royal Purple Filter 40-1009 and Super Tech Oil Filter ST11665. These are not the biggest players, but they're in the game. As for the orange brand, FRAM had one of the most iconic slogans in TV advertising history. Most others can only...

I hoped that somehow the bankruptcy of First Brands, the parent company of FRAM and Champion Labs, would not significantly harm these two brands (among many under the First Brands umbrella). However, the FRAM websites have been taken down, and, according to a Reddit post, there have been...

Update on 2026-06-02: I installed the RUGGED RIDGE LOCKING HOOD CATCH (sold as a pair) part # 11210.32. The only remotely tricky part was adjusting the components to equalize the hood gap. Order date: 2026-05-16 - Credit card is charged soon after order is placed (not when order is shipped)...

The VEVOR YS-089 (10L) fill pump is designed primarily to be used with an air compressor. The hand pump on the 10L VEVOR unit is intended only for small adjustments. @Maximus Gladius advised me that moisture can build up in an air compressor and contaminate the ATF. There are 2-gallon / 7.5L...

It means that Jeep recommends API-certified, MS-6395, SAE 0W-20 motor oil for a Gladiator equipped with the gasoline engine. For a list of six motor oil products that meet these manufacturer specifications, see the table in section 1.5 of Links to Prices. Four of the ten products listed in the...

Please see post #3 in a different thread. The scope of this thread is anchored to manufacturer specifications.

Good point. Please see my comment about MS-6395 in the original post. Everything else is up to date or close enough for now (chemical catalog, 2024). I checked everything on the internal dealer spec sheet against a copy that I got from my local dealer recently. All info related to the...

This is a list of information sources for Jeep Gladiator maintenance & repair. There are others, of course. If you know of a proven source that should be on this list, please send me a DM or leave it in the comments. The source needs to be reputable. List of Sections in This Post 1...

The following post is a fact-based introduction to motor oil viscosity grades, for the gasoline engine, listed in 1) the online version of the Jeep Gladiator owner's manual (revised), and 2) the "Mobil 1 Engine Oils Product Guide Sheet". Motor Oil Compliance Funnel The pages on motor oil...

I know what I wrote (75W-140 for both axles), but the combination of viscosity grades that you installed is pretty much what I would do (75W-85 in front, and 75W-140 in the rear diff). It was just simpler to recommend 75W-140 for both axles. Before I mention aftermarket brands, it is important...

This is the standard advice for any trim level. For Revolution gears, also see the previous reply from @WILDHOBO. Summary The owner's manual recommends SAE 75W-85 for both axles except Sales Code DRZ The internal dealer spec sheet recommends SAE 75W-140 for the rear axle when equipped with...

Yes, the correct MOPAR part is 68088485AB ELECTRIC STEERING PUMP FLUID. Either one of two material standards, MS-11655 or MS.90030, may appear on the label. Material standard number MS-11655 is on the bottle sold by a Jeep dealer, found in the MOPAR Chemical Catalog (2024), and commonly...

You may not have seen the Pan Drop Instructions that I coauthored with @Maximus Gladius. Very carefully written. No shortage of detail. A pan drop is now a one-person job and there's no mess. Problem: Removing the Transmission Oil Pan makes a mess Solution: J-shaped pickup tube Source...

With a little help from @Maximus Gladius (all-in-one fill) and @Gatorac (J-shaped pickup tube for pre-drain), a pan drop has become a one-person, less-messy job. The Pan Drop Instructions are the same for gas or diesel. I agree that the job is not difficult, but that it is a project. Read the...

Good question. I will use the automatic transmission as an example. Update: This reply has been revised to include an overfill of 0.5 liters (0.53 quarts, simplified to 0.5 quarts) as shown in the ZF instructions (see first attachment in Pan Drop Instructions). One of the goals is indeed to...

Here are three jobs that are or were part of my monthly maintenance routine. I learned about these after I joined this forum. In addition to keeping parts or systems in good working order, these jobs involve lifting the hood and crawling under the vehicle every month. Needless to say, this...