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Bar'S Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 Fl. Oz Review

12

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Average

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$$
Revainrating 3 out of 5  
Rating 
3.0
💨 Automotive Additives, 🛢️ Motor Oils & Fluids

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Details

BrandBar's Leaks
Package InformationCan
Liquid Volume32 Fluid Ounces
Item Weight2 Pounds
Recommended Uses For ProductAutomobile

Description of Bar'S Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 Fl. Oz

Safe and easy to use, and works quickly. Best stop leak formula money can Buy. Synthetic blend, for all engines. Repair leaking front and rear main seals. Stop cam and timing seal leaks

Reviews

Global ratings 12
  • 5
    6
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    6

Type of review

Revainrating 5 out of 5

Good for sealso in my review

Sealed my daughters literally empty crankcase. We put this in along with 4 quarts oil. Not an oil change it was simply running on oil film I thinkShe drove 2000 miles to Chicago and back and we then put 2 mote quarts in to fill up oil after she got back. Shop wants 2500.00 to fix. So maybe we will put this in every 3000 miles til she can get another car. Keeps u going a while longer at least

Pros
  • A ok
Cons
  • Doesn't work

Revainrating 5 out of 5

It really stop burning oil.

Yes it did! no more blue smoke or adding oil every week. Awesome product. Thanks worked on 2001 olds Aurora 3.5 v6 Thanks for attention.

Pros
  • This thing do the job of stopping leak in my 1500 dodge ram
Cons
  • Using this product may void a vehicle's warranty, which could be a concern for some customers who want to maintain their vehicle's coverage

Revainrating 1 out of 5

Still leaking for my opinion

Used on a Briggs and Stratton lawn mower engine for a sump gasket leak. Made no difference - waste of money. The product's effectiveness may vary depending on the severity of the oil leak, which could prove disappointing for some customers.

Pros
  • As described
Cons
  • The product's effectiveness may vary depending on the severity of the oil leak, which could prove disappointing for some customers

Revainrating 1 out of 5

Useless product that doesnt work. Eyecandy earbait.

Hasn’t changed the leak at all. Made it worse if anything. Waste of money. Ridiculous warranty. To redeem the money back guarantee, you have to have a mechanic written note mailed to the company and then in 6-8 weeks, they will decide if you qualify for a refund. Nobody in their right mind is going to pay a mechanic $100 to write a letter for a $9 bottle of stop leak. I have a slow dripping rear main seal leak and have driven about 400 miles. I added half the bottle as recommended when I…

Pros
  • Bueno
Cons
  • Still have the same oil leaks. Followed complete detailed instructions!

Revainrating 5 out of 5

My truck was leaking from the rear main and the oil pan. No longer leaks.

I highly recommend this product. I was losing over a quart a week and leaving oil slicks everywhere I parked. After about one hundred miles it no longer leaks at all.

Pros
  • Works fine.
Cons
  • It may be difficult to assess whether the product has worked as intended, as some leaks may be difficult to detect or measure

Revainrating 1 out of 5

Did NOT work for me.

I had a small oil leak, nothing major that a quart every 1.5-2 months fixed. I thought I would give this a try; did NOT work at all. I think it somehow made car leak more as there is a lot more oil on my garage floor and im having to add oil to top off literally every week.

Pros
  • Works as stated. May or may not stop a leak completely
Cons
  • The product may not be suitable for all types of engines, and could cause damage or harm to certain vehicles

Revainrating 1 out of 5

DOESN'T WORK good for me

I added this product to my crankcase when I changed the oil - 1,500 miles later, this product has showed no noticeable impact. My Ford Escape is still bleeding out just like it always has. I've tried everything short of replacing the engine. I replaced the valve cover gasket and the oil pan gasket and tried all kinds of oil-stop-leak products but the leak is still there.

Pros
  • works well
Cons
  • Using this product could potentially cause damage to other parts of the engine or oil system if not applied correctly

Revainrating 1 out of 5

Did not work good for me

I read the reviews and decided to buy the rear main seal product. Drove my F150 350 miles. Oil leaks at approximately 3 times the previous rate. I will update this review if thins improve. Summary: FOR MY 05 F150 , IT WORSENED THE LEAK. the ad indicated it stops all oil leaks. It simply did not work.

Pros
  • Half of the bottle put into my bike for a leak... no more leak. Works great.
Cons
  • It may not be a permanent solution to the oil leak, and could require continued use or additional repair work

Revainrating 5 out of 5

Incredibly amazing stuff

I have had a slight oil leak that was seeming to get a little worse so it made me start looking online to figure out how to fix it. And that’s when I came across this and figured it most certainly cannot hurt to try…. and I am SOOOOOO THANKFUL AND HAPPY THAT I DID! I no longer have any leak! I have always heard people talk badly about this stuff and I am not sure why. All I know is, it worked wonderfully for my vehicle. Exactly as it stated it would. :) Thank you Bars Leaks for such an…

Pros
  • satisfied with purchase
Cons
  • Got this and put it in my truck to stop a oil leak it did not work

Revainrating 1 out of 5

Clogged engine. $3000 in repair costs.

This stuff cost me $3000 in engine repairs because it clogged a passage in my engine and a cylinder wouldn't move. Buyer Beware.

Pros
  • sealed the annoying leak.
Cons
  • I used this for my cars valve stem sealNo change. Waste of money

Revainrating 5 out of 5

Very impressed at how well it worked!

Just pour it in, and watch it work. I don't know if it will seal every single oil leak, but I had a significantly leaking rear crank seal in an older Toyota. About a quart every 15 miles. It now just barely trips.

Pros
  • I got the products. Very easy to use. Helped out alot. Planning on using this with every oil change.
Cons
  • Still had a leak might just have been my car idk

Revainrating 5 out of 5

Works as advertised !

Worked as advertised.Had small rear seal leak.Product stopped leak completely after approximately 50 miles. didn''t work as i expected it to.!

Pros
  • Oil leak stopped after about 100 miles of driving
Cons
  • didn't work as i expected it to.