Lucas Oil10278 Engine Stop Leak, 946 ml

Didn't think this would work ha e Mercedes gla45amg and notice a oil leak underneath which would probably have cost me hundreds to repair gave this a try and to my amazement it worked gave it a few weeks it started to get smaller then completely has disappeared so highly recommend this product 😀

Excellent productStopped leak improved performance

I was expecting very little from an "magic oil stop leak" product but it's actually not terrible. The bottle itself looks terrible and the instructions are....... ropey at best but it does genueinely seem to have reduced my oil burning. My valve seals have been letting oil past ever since I got my car but they are letting noticibly less oil though now. It's not a miricle fix, but it has made a difference, so for £15 I am happy to recommend this.

This was easy to drop into my oil sump , it's very very thick , whcih I thought was great when I saw it as I was hoping that this product would stop a small leak in my engine oil sump. I added this to my regular DIY oil & filter change , 3 week slater and 200 miles on the oil leak has stopped. This stuff does what it says on the tin . 10/10 from me .

This stuff looks like Golden syrup or honey mixed with a glue but obviously it is not this. it is proper oil and mineral based product just very viscous. Followed the instructions and so far I am pleasantly surprised. The annoying leak has stopped, need to put some serious hot driving in and see if I still leave a small puddle in the works carpark.My advice to make use easier - it is better if the outside temp is not close to freezing, the colder the temp the thicker the unmixed product the harder to pour.Update after 600 miles, has reduced the leak but not by much, obviously it cannot work for all leaks.

Good value - bit difficult to use as it’s so thick (should be a clearer on the side so you can see in the bottle ) I had to put in measure before adding to car - however saying that it redeems to perform well, it’s not a cleaner and dose it’s function well helping refresh the seals - use is ok if you can work with the measurements

I used the product like duz on the packaging and it didn't work, I even increased the dosage and no solution!!! The engine gasket kept leaking as well as money out of my pocket for spending on this product! 😡 Disappointing

This product is by far the best additive for short term resolution of oil leakage.If you have a new small leak then this additive may help to stop or reduce leakage.If you have a big serious leakage caused by gasket or O ring failure then please don't expect this to be a magic solution to cure your issues.It's well worth trying this out first before going to the garage which will cost you hundreds.Check your dipstick levels to make sure you have enough capacity to take the additive.Don't overfill your engine oil.It may take 400 miles or more (mine took this long) for it to work itself into the seals and affected area's. Don't expect magic to happen after a few days.Continue to monitor and check your engine oil levels and top up when needed. Remember, as it takes time to work your engine may still leak hence check and top up.After its done its job, I changed my oil and oil filter as a good practice.I would buy this product again.