In this video, I’m taking a close look at the Dynaboost™ Grease Gun from LockNLube and explaining why it exists and what problem it was built to solve compared to LockNLube’s previous grease gun offerings.
If you like what you see, you can save 10% on your purchase at LockNLube.com by using promo code DFJAY.
LockNLube built its reputation around fixing one of the most frustrating parts of greasing equipment: grease going everywhere except where it belongs. Their earlier pistol-grip and lever-style guns paired durable construction with their proven locking coupler that snaps onto a Zerk fitting and stays put, dramatically reducing leaks and mess.
But there was still a gap.
Traditional grease guns typically favor either grease volume or pressure. Some move grease quickly but struggle with dry, plugged, or stubborn fittings. Others can build pressure but require more effort, slower operation, or awkward leverage.
That’s what the Dynaboost was designed to address.
This dual-mode grease gun automatically shifts between high-flow and high-pressure operation depending on resistance, delivering smooth grease flow during normal maintenance while generating up to approximately 12,000 PSI when stubborn fittings need extra force. There are no switches to flip. You simply keep pumping and the tool adjusts automatically.
That added pressure helps tackle seized Zerks, long grease passages, cold grease, and neglected equipment without requiring pneumatic systems, hoses, or compressors.
The Dynaboost also keeps many of the features LockNLube users already appreciate. It retains a compact, one-hand-operable design similar to their pistol-grip models, making it easier to use in tight spaces or overhead positions. The ergonomic grip helps reduce fatigue during longer maintenance sessions.
It also continues using the trusted LockNLube locking grease coupler, which securely clamps onto fittings, seals tightly, and releases cleanly. Standard grease cartridges and familiar hose components remain unchanged, so there’s no complicated learning curve.
The Dynaboost doesn’t replace LockNLube’s previous grease guns — it builds on them by adding meaningful performance upgrades while keeping the durability and convenience users already trust.
The Dynaboost featured in this video was provided to me by LockNLube for review. As always, my opinions are based on real-world shop and equipment use.
If you maintain tractors, trailers, implements, or shop equipment and want a manual grease gun that handles both routine maintenance and stubborn fittings, this tool may be worth a look.
Thanks for watching, and as always... Just Do It Yourself.
AI Generated·May contain errors
Video Summary
AI Generated
Dirt Farmer Jay reviews the new Lock & Lube DynaBoost grease gun, a professional-grade tool designed to bridge the gap between high-pressure and high-flow needs. The tool features improved leverage for easier operation and a proprietary coupler system to keep hands clean, offering a versatile solution for both professional mechanics and DIY users.
Hey, Dirt Farmer Jay here from DirtFarmerJay.com.
My friends at Lock & Lube have done it again.
They've introduced a new DynaBoost model.
Well, it kind of looks similar to what they've done before.
What's new here and what was the gap they're working to fill?
Stay tuned and I'll tell you all about it.
Hey, Dirt Farmer Jay here.
I've been using Lock & Lube's grease guns
for two or three years now.
I've been very pleased with them.
And I've actually been able to gift a couple of these units
to some of my mechanic friends,
especially those that take care of our own vehicles.
Well, this is their new DynaBoost model.
And it fills a gap that exists
among different models of grease guns.
So they kept the best parts.
I mean, it looks very similar.
If I hold up their pistol style from before,
at first glance, they look very similar.
And that's because they kept the best features,
the same.
For instance, there's a nib right on the top
and you can see it here, but it's camouflaged
because actually the coupler is returned back to it.
And that actually creates that loop that you can hang it by
while keeping this grease from going all over everything.
So that is one thing they kept.
The second thing is the coupler itself on the end,
which is their proprietary system.
This allows you to clip it on, let it go,
and then work on this end for it to apply the grease
without it getting all over your hands.
So they kept all these good features
and their customary nice fittings,
the build, the fit and finish is very nice.
Now, in full disclosure,
my friends there at Lock & Loop provided me this unit.
If you buy one of these and you go to their website,
it's about $120.
It's a professional tool.
It's really well-made.
And I'm gonna actually give this to one of the mechanics,
a young mechanics technicians at a great auto shop
in our area as a gift to them
that they can build their toolbox.
I'm sure this is gonna serve them well for many years.
Now let's get to the features on this,
some specifics of what they are working to address here.
The first thing we're gonna look at
is the way this handle is.
Now I don't have any grease in it yet.
We're gonna load it and prime it in a few minutes,
but this feels really good.
And if you notice at right up here,
the mechanism there versus on this one,
that has a single rod, this has got more gear.
This one, the new one develops more leverage
and pressure with less effort here.
So you can get a lot of work done
with just moderate hand strength.
The second thing,
they have a very clear bulk loading area right here.
You've got the same type of feature in the earlier ones,
but this is the system here.
The nib on the top is very, very nice.
It's a good storage unit,
but it also has some bleed out areas there.
And as I said, the fit and finish is very nice.
The other thing that's different here
is notice the taper on the end
that actually makes this easier to grip on.
As you can see here,
I'm able to spin that out if I was gonna load this.
Instead of a over sleeve and the plunger,
it's all integrated in their proprietary green color.
I love their lock and lube color.
It's beautiful.
So, but the big issue,
here's I held the best for last,
is if you notice right here,
you're gonna see some marks right here,
and one is HP and the other one's HF.
HP stands for high pressure, HF, high flow.
And if you look on the end right there,
you'll see a button here.
When that button is out, as indicated by the arrow,
it means that you've got high pressure.
That is maybe you've got a zerk fitting that's clogged
or has dried grease in it,
for some reason isn't taking grease.
Well, with this new gun,
you can develop up to 12,000 PSI right here
with hand strength.
The older unit was around 10,000.
So that extra 2000 PSI will develop a lot of pressure
and most likely be able to get grease
to flow through there.
When the gun is operating under that condition,
that button will protrude and will let you know
that you are in a high pressure mode,
meaning less flow,
but a lot more pressure until it breaks loose.
Now, when it drops back to lower flow,
or let's suppose you're just greasing something
that doesn't have a clog,
then the button's gonna be in indicating high flow.
You're gonna get a lot more grease with each pump.
So, both areas are dressed in one unit
and very comfortably using moderate hand strength.
Well, let's go ahead and load up grease in this,
prime it, and I'll show you it operate.
We'll just use this nib as though this was a zerk
that was not taking grease.
All right, let's load the grease in it.
I'm gonna use this grease right here.
Some of my mechanic friends really liked this grease
and I began to use it as well.
It's very visible and we're gonna use that right here.
Now, this cartridge has been stored properly
and so is ready to use
and is very unlikely to airlock in the grease gun.
Check out the video linked above
and we'll tell you exactly how to know
whether or not the grease you're purchasing
has been stored correctly
and is gonna function right out of the tube correctly.
Let's go ahead and do this.
So, what we're gonna do is this end, the tabbed end,
is what goes near the head when you load it.
It does not go like this.
It goes the other way around
and the reason is you want grease right up against the tab
so there's no air in here that gets forced into this,
causing an airlock.
We want it to prime right away.
So, let's set this aside.
Let's go ahead and get this open, ready to go.
Okay, we're gonna pull out the plunger,
the follow-on plunger, cock it to the side
so it's set like that
and then go ahead and get this unscrewed out
the rest of the way.
Now, take off the plastic end,
which is not the end that goes towards the head.
It's gonna go in the bottom.
As you can see, there's quite a gap here.
You wouldn't wanna force that air into the head.
It would cause an airlock in there
and the gun wouldn't prime.
So, you're gonna go this way
with that portion towards the head here
and we'll go ahead and take this.
As you can see, this grease is fairly sticky.
There we go.
We're gonna let it drop in.
Very little air on the end.
All right.
Let's go ahead and thread it in.
Okay, we're right there.
All right, now go ahead and put the follower back in.
Find the sweet spot.
Push that all the way in like that.
Now, your grease gun is ready to prime.
Now, we're gonna go ahead and prime it.
All we're gonna do is I'm gonna put that
down on the table there
and I'm gonna start squeezing right here.
I felt it grab right away.
Grease is flowing up there
and I would expect, yep, anytime.
There we go.
Now, to simulate a clogged Zerk fitting,
I'm gonna put it back over on top of itself
like that.
And let's watch what happens right here
when I go to put pressure.
See, it builds pressure.
Now, you can see it start to come out.
See the...
And it's trying to get past that amount right there.
So now, this is under pressure right there,
indicating that it's creeping up
towards 10,000 up to 12,000 pounds.
Notice the Zerk fitting still holding tight and all that.
If I take that off without
some kind of protection, I'm gonna be wearing grease.
But now you can see that indicates right away.
And by the way, the hand pressure, how hand worked there,
it was deceiving.
I said, am I building pressure?
Sure enough, I was.
I could see the button come out
and a little bit going there.
But the leverage on this tool is fantastic.
The ergonomics are really good.
If you're interested in getting one of these,
you can just go to lockandlube.com
and use the promo code DFJ, J-A-Y, D-F-J-A-Y,
and you'll get 10% off on your order.
I think you're gonna like it.
I like all of the things they've got here.
One thing I forgot to mention earlier,
there's a built-in swivel here
that allows that to never have to kink.
This is a well-made commercial tool.
And whether you are a weekend warrior
or you're a professional, this tool will serve you well.
I mentioned this to you earlier,
but in case you didn't click on it,
check out this video next door
where we tell you how to know the grease
that you're buying for your grease gun
has been properly stored and will not airlock.
It'll prime correctly the first couple of squeezes.
Check it out.
Hey, until the next time,
this is your friend Dirt Farmer Jay from DirtFarmerJay.com.
