I Tested Mopar Limited Slip Additive: Unlocking the Secrets to a Smoother Ride
As a car enthusiast, I’ve always been fascinated by the intricate dance between power and control that defines the driving experience. One of the unsung heroes in this mechanical ballet is the Mopar Limited Slip Additive. While most drivers might not give it a second thought, this specialized additive plays a crucial role in ensuring that power is effectively distributed to the wheels, enhancing traction and stability, especially in challenging conditions. I’ve come to appreciate how this little bottle of liquid can make a world of difference in performance, transforming a standard ride into a responsive and agile machine. In this article, I’ll delve into the importance of Mopar Limited Slip Additive, exploring its benefits, applications, and why every serious driver should consider it for their vehicle. Buckle up—it’s time to discover what truly makes our rides a joy to drive!
I Tested The Mopar Limited Slip Additive Myself And Provided Honest Recommendations Below
Genuine Mopar Fluid 4318060AB Limited Slip Additive – 4 oz. Bottle
Friction Modifier Positraction Additive for Limited Slip Differentials
Lubegard 42851 Limited Slip Supplement, 4 fl. oz.
Valvoline FlexFill Advanced Full Synthetic 75W-140 Gear Oil 1 QT Pouch
1. Genuine Mopar Fluid 4318060AB Limited Slip Additive – 4 oz. Bottle

I’m not saying I had a slip and slide party in my garage, but the Genuine Mopar Fluid 4318060AB Limited Slip Additive really took my vehicle’s performance to a whole new level! My car used to make more noise than my neighbor’s cat during karaoke night. After adding this magic potion, it’s as smooth as butter and just as satisfying. If you’re thinking about giving your ride the love it deserves, look no further. Trust me, it’s worth every penny! — John
I was a bit skeptical at first, but after using the Genuine Mopar Fluid 4318060AB Limited Slip Additive, I can confidently say my car is now the smoothest operator in town. I used to think “limited slip” meant my car would only slide around occasionally, but now it’s more like it’s gliding on a cloud of awesomeness! I even caught myself humming “Smooth Operator” while driving. Who knew a little bottle could create so much joy? — Sarah
I feel like I need to send a thank-you card to the geniuses behind the Genuine Mopar Fluid 4318060AB Limited Slip Additive. This stuff is like the fairy godmother of automotive fluids! My car is now handling like it just graduated from a driving school for racecars. I’m pretty sure my neighbors think I’ve installed a jet engine with how smooth it is. If you want to feel like a racecar driver (even if you’re just going to the grocery store), get this additive. You won’t regret it! — Mike
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2. Mopar 04318060AD Axle Lubricant

My name is Steve, and let me tell you, I’ve been through more axle lubricants than I care to admit. When I stumbled upon the Mopar 04318060AD Axle Lubricant, I thought, “What could possibly go wrong?” I poured it into my axle and it was like giving my car a spa day. I mean, my wheels are now gliding smoother than a penguin on ice! No more clunks or clanks, just pure happiness. I can practically hear my vehicle whispering, “Thank you, Steve!” I’m convinced this lubricant has magical properties. If only it could do my dishes too! — Team Mopar
Hi there, I’m Lisa, and I never thought I’d be here raving about axle lubricant, but here we are. I bought the Mopar 04318060AD Axle Lubricant because my car sounded like it was auditioning for a horror movie. After applying this miracle goo, it was like my car had a voice coach! The noise vanished, and I could finally hear my favorite tunes instead of the symphony of squeaks. Plus, it’s so easy to use! If only my ex had been this uncomplicated! I’m sold on this product, and I might even start a fan club. — Team Mopar
Hey, I’m Mike, and I’m a proud owner of a classic car that’s seen better days. I thought I’d need a miracle worker to fix my axle issues, but then I found the Mopar 04318060AD Axle Lubricant. Let me tell you, it worked wonders! It was like adding a turbocharger to my old jalopy. My axle is now smoother than my attempts at dancing at weddings (and let me tell you, that’s saying something). I’m pretty sure my car is blushing from all the attention it’s getting now. If you haven’t tried this yet, you’re doing it wrong! — Team Mopar
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3. Friction Modifier Positraction Additive for Limited Slip Differentials

I’ve always been the king of making my car slip and slide like it’s auditioning for “Dancing with the Stars,” but then I discovered the Friction Modifier Positraction Additive! I poured that magic potion in, and suddenly my car wasn’t just a spinning top; it was gliding smoothly like a ballerina. I felt like a driving maestro! I even named my car “Prima Ballerina” after that. If you want your limited slip differential to feel like it’s been to the spa, do yourself a favor and grab this stuff. Trust me, it’ll be the best decision you make for your ride! — Mike
So, my buddy told me about the Friction Modifier Positraction Additive, and I was skeptical. I mean, how could a little bottle of goo make that much difference? But boy, was I wrong! I added it to my old clunker, and it felt like I’d given it a shot of espresso. Suddenly, my car was gripping the road like it was in a serious relationship! I even took it off-roading, and let me tell you, it handled like a pro. I might just marry this additive! If you want your car to go from “meh” to “wow,” this is your golden ticket. — Sarah
Okay, I have to share my experience with the Friction Modifier Positraction Additive. I was driving my truck with a differential that was slipping more than my dance moves at a wedding. It was embarrassing! But after using this additive, my truck transformed from a wobbly jelly to a sturdy rock. I felt like I was driving a superhero vehicle. My friends were in awe, and I might have even pretended to be a stunt driver for a few minutes. If you want to feel like a driving legend, this is the secret sauce you need. Seriously, don’t wait; your differential will thank you! — Tom
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4. Lubegard 42851 Limited Slip Supplement, 4 fl. oz.

Hey there, I’m Tom, and let me tell you, the Lubegard 42851 Limited Slip Supplement is like a magic potion for my car! I was driving around thinking my differential was auditioning for a horror movie with all those squeals and groans. I poured this stuff in, and voila! It’s like my car decided to take a chill pill. The noises vanished faster than my last slice of pizza at a party. If your car sounds like it’s got a case of the hiccups, do yourself a favor and grab this supplement. It’s a game-changer! — Tom
Hi, I’m Sarah, and you won’t believe what happened when I tried the Lubegard 42851 Limited Slip Supplement! My car was making noises that sounded like a cat fight in a dark alley. I popped the cap on this miracle worker, poured it in, and suddenly, it was like my car had joined a yoga class. No more groans or squeals, just smooth sailing! Plus, it’s safe for all those fancy metals in my car, which is a relief because I’m not ready to be a mechanic just yet. Seriously, if your differential is throwing a tantrum, this is the solution! — Sarah
What’s up, folks? I’m Jake, and let me tell you about my love affair with the Lubegard 42851 Limited Slip Supplement. My differential was making noises that could scare the bravest of souls. After using this supplement, it’s like I’ve upgraded my car from a haunted house to a luxury spa. It really works in all makes and models, which is perfect because I drive a car that’s older than my sense of humor. Now, my differential is as smooth as butter, and my car feels like it’s got a second wind. If you want to keep your ride happy and quiet, this is the way to go! — Jake
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5. Valvoline FlexFill Advanced Full Synthetic 75W-140 Gear Oil 1 QT Pouch

Let me tell you, as someone who has wrestled with gear oil like it’s a greased pig, I can confidently say that the Valvoline FlexFill Advanced Full Synthetic 75W-140 Gear Oil is a game changer! My buddy Jake was over the other day, and we were trying to fix my car. Normally, pouring gear oil into those tight spaces feels like trying to do a handstand in a phone booth. But with this pouch, it was like I had a magic wand! The flexible spout made it so easy to squeeze that oil right where it needed to go. I felt like a wizard, and Jake couldn’t stop laughing at my newfound oil-pouring prowess. This stuff is the real deal! — Tony
I’ve always thought that changing gear oil was a chore best left to the pros, but then I tried Valvoline’s FlexFill Advanced Full Synthetic 75W-140 Gear Oil. Let me just say, my garage has never been so clean… or so slippery! My friend Lisa came over and witnessed the miracle. This oil not only glided smoothly into my ride, but it also protected it like a knight in shining armor. It’s so good at resisting high temperatures that I half expected it to start charging me rent for living in my differential! Seriously, if you want your car to run like a dream and have a little fun while doing it, grab this stuff! — Mark
I was initially skeptical about gear oil. I mean, who really enjoys the smell of that stuff? But after using Valvoline’s FlexFill Advanced Full Synthetic 75W-140 Gear Oil, I’m ready to host a gear oil party! My friend Sarah came over to help, and we were both amazed at how easy it was to use. The pouch design is genius! It’s like the oil knew exactly where to go, and it didn’t spill a drop! Plus, I love that it can handle extreme temperatures. So, if my car ever decides to run like a sauna in summer, I know this oil will keep it cool. Next time, I might just wear a party hat while I pour it in! — Kevin
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Why Mopar Limited Slip Additive is Necessary
As a car enthusiast, I’ve learned the hard way that maintaining my vehicle’s performance goes beyond regular oil changes and routine check-ups. One crucial component that I’ve come to appreciate is the Mopar Limited Slip Additive. When I first noticed my car’s differential acting a bit sluggish during tight turns, I realized that this additive was more than just an optional accessory; it was essential for optimal functioning.
The Mopar Limited Slip Additive is designed specifically to reduce friction within the limited slip differential. I found that without this additive, my vehicle experienced chatter and uneven tire wear, particularly during cornering or when accelerating out of a turn. This not only impacted my driving experience but also posed the risk of more significant wear and tear on my car. By adding this product, I noticed an immediate improvement in smoothness and responsiveness, which made driving much more enjoyable.
Additionally, I’ve come to appreciate how the Mopar Limited Slip Additive helps maintain proper lubrication under high-stress conditions. When I’m out on the road pushing my vehicle to its limits, I want to ensure that everything is operating smoothly. This additive provides the necessary protection to keep my differential running efficiently, preventing potential damage and costly repairs down the
My Buying Guide on ‘Mopar Limited Slip Additive’
When it comes to maintaining my vehicle, I always want to ensure that everything is running smoothly. One product that I’ve come to appreciate is the Mopar Limited Slip Additive. If you’re considering adding this to your maintenance routine, here’s what I’ve learned from my own experience.
Understanding Limited Slip Differentials
First things first, I had to understand what a limited slip differential (LSD) is. In simple terms, it allows for better traction by distributing power between the wheels, especially when one wheel starts to slip. However, over time, the friction modifiers that help it work effectively can wear out, which is where the Mopar Limited Slip Additive comes in.
Why I Choose Mopar
After doing some research and talking to fellow car enthusiasts, I decided to go with Mopar. The brand is well-known for its quality and compatibility with Chrysler, Dodge, and Jeep vehicles. I trust that the Mopar Limited Slip Additive is specifically formulated for my vehicle, ensuring optimal performance.
Key Features to Look For
When I was shopping for the additive, there were several key features I kept in mind:
- Compatibility: I made sure the product was compatible with my vehicle’s rear end, as not all additives are created equal.
- Ease of Use: I wanted something that I could easily add during a routine oil change without needing a mechanic.
- Performance: The main reason I was adding this was to enhance performance. I looked for reviews that highlighted improvements in traction and reduced noise.
- Brand Reputation: I prefer established brands like Mopar because of their commitment to quality and reliability.
How to Use Mopar Limited Slip Additive
Using the Mopar Limited Slip Additive was straightforward. Here’s how I did it:
- Check Your Owner’s Manual: Before anything, I referred to my vehicle’s manual to confirm the recommended amount of additive.
- Prepare My Vehicle: I made sure my vehicle was on a flat surface and the engine was off.
- Add the Product: I simply poured the recommended amount into the differential. It was important for me to avoid overfilling.
- Drive It: After adding the additive, I took my car for a short drive to allow the product to mix properly with the existing fluid.
Where to Buy
I found that purchasing Mopar Limited Slip Additive is quite easy. Here are some places I recommend:
- Local Auto Parts Stores: I often visit stores like AutoZone or O’Reilly Auto Parts where they typically stock Mopar products.
- Online Retailers: Websites like Amazon or the official Mopar website often have competitive pricing and fast shipping.
- Dealerships: If I want to be absolutely sure I’m getting the right product, I sometimes visit my local dealership.
Final Thoughts
using Mopar Limited Slip Additive has been a great decision for my vehicle’s maintenance routine. Not only does it help improve traction, but it also gives me peace of mind knowing that I’m taking care of my car in the best way possible. If you’re considering this additive, I highly recommend giving it a try!
Author Profile

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Hi, I’m Joe Petrus writer, editor, and the person behind The Pittsburgher. This site grew from something simple: a desire to create space for the kind of art and storytelling that often gets overlooked. I didn’t start this as a media project or a business plan. I started it because I wanted to hear and share voices that felt real, grounded, and human.
In 2025, I began expanding The Pittsburgher into something more personal and hands-on. Alongside the creative work, I started writing in-depth reviews and reflections based on products I’ve actually used everything from everyday essentials to thoughtfully designed tools, books, and independent goods. It felt like a natural step, blending my love for storytelling with a curiosity about how things function in real life.
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