Bar's stop leak danger! 

What should we test next?

I missed the answer. When did you tell us whether it worked out not??

The key to this is get to full temp at least 20 mins and all the pellets must go in that's the active ingredient they disolve in the hot coolant ,

He added bars without the actual pellets!!! 😂

The largest scientific testing organization in the world, ASTM, has standards for these products, to ensure they work and cause no engine damage, the main standard being ASTM 6107. This product passed the standard.

It worked for me. My radiator had a bad leak too! Beware though this stuff is super thick. Almost like a milkshake. Only use a half of it though if you have a 4 cylinder.

There's white pellets in the container that sink to the bottom. You just put in the solvent from the top. Why would you expect that it would work if you're not dumping in the whole bottle? Or at least scooping out some of the pellets from the bottom?

No pellets I used this product of a massive leak. And it stopped it. It works. But you need the pellets.

Ehh, the amount you pored into the antifreeze is about half of what you would for a 4 cylinder engine. On the bottle, it says to use about half for 3,4, or 5 cylinder engines, and the full bottle for 6 cylinders and up. And the radiator is tiny, so that may be a big contributing factor.

Thank you for making this video! What it showed me is that this product changes the color of your coolant to a color that almost resembles / can be confused with the milky color that comes from being contaminated with engine oil. i used this stuff yesterday and it worked to stop the leak in my radiator, but then my coolant turned this color and i thought i was going to blow my head gasket. Very relived to know that this product turned my coolant this color and not oil!

I would have liked to see the actual temperature the liquid state was in with time frames.

This stuff worked for me, make sure the pellets go in also.

Yea you had to put the pellets or at least a few in the anti freeze and eventually getting warm enough to melt them and flow into the hole. The outer open air of the hole cures the liquified pellets . They have an extremely strong seal once they have done the job... The liquid is an anti rust and water pump lubricant...Good 👍 VIDEO though

It works 90 percent of the time, Why do you think they have been selling it for decades. would I put it in a nice car, Hell no. These are poor mans fixes and have saved people thousands of dollars.

k so instructions say put it in cooled engine, then they’re saying it needs to be heated to melt and fill the leak. so idling the vehicle is the act by which ingredients are heated im assuming. it was a bit confusing bc i overthink, n i feel the video did not help with clarity. also the pellets do not go down easy but warmer ( sun-soaked ) water to coerce it all down. didn’t let it idle for twenty minutes

looks like you added WAY too much stop leak. That bottle is for 3 gallons and you used about 15% of it, which would be for 1.8 gallons. I agree with other comments. cant tell what happened...

misleading heading. Don't see any danger, though not clear if it's working either.

Just a suggestion, a more accurate way of heating the coolant would be to put the container on an electric burner. Then you could measure the radiator tube temps with an infrared thermometer. Great concept though!

First, you didn't get the pellets in the antifreeze. Those pellets need to be circulating. It is the pellets which stop up holes. However, it's pretty clear (as I discovered myself today) that Barr's Leak (note spelling) has oil in it. I just ran 15 gallons of flush water through my coolant system and there is still some yellowish oil on top of the coolant.

Right the stuff has a brown glue texture. I had to shake it up with some coolant before adding it.👩‍🔧

Bars aluminum formula fixed my leak. ‘Twas leaking coolant into my motor causing misfire. Bars fixed leak. Ten dollah fix. Use bars now !

Aluminum dust works great

I have a question if the pellets were whole and someone put the pellets in will it mess it up?

1:03 Where are all the pellets gone? I bought a bottle and it contains lots of pellets, which aren't easily melted unlike what it says on the bottle. But where are they in your video?

The whole system needs to be up to temperature including the liquid not just the outside of the radiator. Of course it isn't going to work like that.

Final point. No guess

Radiator out of an F250?

Why are you heating the temperature probe? You didn't change the temp of the coolant by doing this. Very poorly carried out test. You needed to heat the fluid to operating temp, use the probe to monitor the fluid temp, dump the entire bottle in and maintain fluid temp and PRESSURE that's in a cooling system(16psi-ish) for the amount of time it specifies on the bottle. Sorry solid thumbs down for this one

I need the coolant in the glass to be bubbling scorching hot to verify if this would work the torch an little wire to keep it heated I mean come on of course it ain't going to work that torch its not going to make the coolant 220+ degrees how's how's bars leak going to heat up an do its job?

Do you need to drain your system with this brand of of it good to go?

The liquid one seems to work better. The pellets first would come out the bottle second my car I can't pore in the radiator only a reservoir. I think it just sat at the bottom of it. Will it eventually slide into the radiator?

None the wiser!...how we supposed to know if the stuff worked.?!!!

This work good yes or not on plastics radiator

عمل رائع شكرا لك

I've use this one and it worked for me, it contains pellets in it that stop the leak.

Cool

Dude, do you need a better understanding of physics. It's not going to see you unless it's pressurized.

Did it work? I don't know that's why I'm watching the video. Did it stop the leak?

You so exhageratted it, why inhale that dirt alone

Not good at all.

I don’t like that white colour

Seized my engine

Bars is trash