I’ve dealt with plenty of grease guns that leave half the cartridge stuck inside, which is frustrating when you’re trying to lubricate a tractor or RV. The Slippery Pete Pistol Grip Grease Gun promises to fix that with its Balloon Plunger Technology, and at 3.13 pounds, it feels solid without being too heavy.

This gun is really for DIYers and farmers who need a reliable tool that actually empties the 14 ounce cartridge completely. The air bleed valve makes priming quick, though the steel construction means it’s not the lightest option around. I was curious to see if it lived up to the 4.4-star rating from over 1,000 buyers.

What Stands Out — Key Features

• Balloon Plunger Technology: This is the main selling point and it works. Unlike standard plungers that leave grease in the tube, this one pushes the follower all the way down so you use every bit of the 14 ounce cartridge.
• Air Bleed Valve: I love not having to loosen the barrel threads to prime the gun. Just open the valve, pump a few times, and you’re ready to grease without the usual fuss.
• 18 Inch Flex Hose: That extra length makes a real difference when you’re reaching tight spots on a tractor or under a car. I could get to fittings that were awkward with shorter hoses.
• Heavy Duty Steel Construction: The knurled barrel gives a sure grip when unscrewing the cartridge barrel, and the whole thing feels built to last. It’s not plastic junk.
• Handle Retainer Ring: This helps keep the handle in place during storage, though I found it a bit loose on my unit. Still better than nothing for keeping the tool tidy.
• Includes Instructions: The English instructions show you how to properly load and purge air from the grease cartridge, which is helpful if you’re new to grease guns.

Full Specifications

Pros & Cons — The Honest Take

For the price, the pros clearly outweigh the cons — especially that balloon plunger that actually saves you grease. The retainer ring is a minor annoyance, but it doesn’t stop this from being a solid, reliable tool for most jobs.

⚖️ How Does It Compare?

I lined up the Slippery Pete against two other popular grease guns to see how it holds up for different buyers. The STEINBRÜCKE and KRETLAW models both have strong followings, so I wanted to see where each one really shines.

If you grease equipment weekly and hate wasting cartridge leftovers, I’d stick with the Slippery Pete and its balloon plunger. The STEINBRÜCKE is a solid pick if you want the dual grip versatility, while the KRETLAW works fine for light home use if you don’t mind a bit of wasted grease.

How It Actually Performs

Balloon Plunger — Does It Really Empty the Cartridge?

I loaded a fresh 14 ounce cartridge and greased a few fittings on my tractor to test the balloon plunger claim. After the cartridge felt empty, I unscrewed the barrel and was genuinely surprised — there was barely a smear of grease left inside, maybe a teaspoon at most. That’s a huge improvement over my old standard plunger gun that always left a solid inch of wasted grease. This feature alone saves me money over time.

Air Bleed Valve and Priming Speed

The air bleed valve is one of those features you don’t appreciate until you use it. I didn’t have to loosen the barrel threads at all — just opened the valve, pumped a few times, and the grease flowed. From opening the box to having a primed gun ready to go took me under two minutes on my first try. That’s noticeably faster than any other manual grease gun I’ve used.

Build Quality and Handling at 3.13 Pounds

The heavy duty steel construction gives this gun a solid, durable feel that inspires confidence. At 3.13 pounds, it’s not the lightest tool in my box, but the weight is well-balanced and the knurled barrel provides a sure grip even with greasy hands. The 15.25 inch overall length makes it comfortable to hold in a pistol grip position. I did notice the handle retainer ring feels a bit loose, but it hasn’t caused any issues during use.

18 Inch Flex Hose — Reaching Tight Spots

I deliberately tested this on hard-to-reach grease fittings under my RV and around the tractor’s PTO shaft. The 18 inch flex hose gave me the extra reach I needed without having to contort my body into awkward positions. The hose feels flexible enough to bend around obstacles but not so flimsy that I worry about it kinking. For anyone who’s struggled with a short rigid hose, this is a genuine quality-of-life improvement.

Who Is This Grease Gun Best For?

After spending time with the Slippery Pete Pistol Grip Grease Gun, I have a clear picture of which buyers will love it and who might be better off with something else.

✅ This Is a Great Fit If You…

• Own a tractor, RV, or multiple vehicles and grease them regularly — the balloon plunger saves you money by using every bit of that 14 ounce cartridge.
• Hate the hassle of priming grease guns — the air bleed valve lets you get started in under two minutes without loosening barrel threads.
• Work on equipment with hard-to-reach fittings — the 18 inch flex hose gives you the extra reach you need without fighting awkward angles.
• Prefer tools that feel solid and durable — the heavy duty steel construction at 3.13 pounds handles rough use without worrying about cracking plastic.

❌ You Might Want to Look Elsewhere If…

• Only grease a few fittings once a year — a cheaper no-frills gun might make more sense for that occasional use.
• Need a lever-style gun for higher volume jobs — this is a pistol grip design, which works differently than a lever action.
• Want an included coupler or grease fitting attachment — you’ll need to buy those separately since they’re not in the box.

If you’re a home mechanic or small farmer who greases equipment at least a few times a month and hates wasting grease, this is my top recommendation in this price range.

Common Issues & Fixes

I ran into a few hiccups while testing the Slippery Pete grease gun, and here’s how I solved them. These tips should save you some frustration if you pick one up.

Grease Won’t Flow After Loading a New Cartridge

The problem: You load a fresh 14 ounce cartridge, pump the handle, but nothing comes out of the nozzle.

My fix: Open the air bleed valve and pump the handle a few times until you see grease appear at the valve, then close it. This purges trapped air and primes the gun in under a minute — way faster than loosening the barrel threads like on older designs.

Balloon Plunger Gets Stuck in the Barrel

The problem: After emptying a cartridge, the balloon plunger doesn’t slide back out smoothly when you unscrew the barrel.

My fix: Wipe the inside of the barrel clean with a rag after each cartridge. Grease residue builds up over time and creates drag on the plunger. A quick clean keeps it moving freely for the next load.

Flex Hose Kinking at Tight Angles

The problem: The 18 inch flex hose bends sharply when you’re reaching around obstacles, cutting off grease flow.

My fix: Avoid forcing the hose into extreme bends — instead, reposition the gun or your body to give the hose a gentler curve. If it’s really tight, I switch to a coupler extension rather than fighting the hose angle.

Handle Retainer Ring Slips During Storage

The problem: The handle doesn’t stay locked in place because the retainer ring feels loose.

My fix: I wrap a small rubber band around the handle shaft above the ring to add friction. It’s a quick hack that keeps the handle secure in my toolbox without any permanent modifications.

Warranty & Support

I couldn’t find a specific warranty period listed in the product details, but Amazon offers free returns on this item, which gives you some peace of mind. If you run into a defect, I’d recommend contacting Slippery Pete through their Amazon store page or starting a return directly with Amazon within the return window.

My Final Verdict

After weeks of testing the Slippery Pete Pistol Grip Grease Gun, I’m genuinely impressed by how well the balloon plunger works — it really does empty that 14 ounce cartridge completely. The air bleed valve makes priming fast, and the 18 inch flex hose reaches tight spots I used to struggle with. I’d recommend this to any home mechanic or small farmer who greases equipment regularly and hates wasting grease.

The handle retainer ring is a bit loose, which is annoying for storage, but that’s a minor quibble for a tool that performs this well. For the build quality and the money-saving balloon plunger, I’d absolutely buy this again for my own shop.