The Oil Leak Stop since 1995
for all oil systems and types
With LecWec, seals based on polymers can be sealed during operation in all oil types and all oil systems with an almost 100% success rate. LecWec is the universal solution for seals that have become leaky.
✓Oil Leak Stop for sealing
✓Oil Stop additive for engine oil and transmission oil
✓Oil sealing agent without chlorine
✓Seal the engine with an oil additive
LecWec has been the oil leak stop additive since 1995
In every industrial facility, in every company, there are hydraulic systems, compressors, and vehicles with an oil circuit. Often, large quantities of oil circulate within them. And in most cases, polymer-based oil seals are used. When they start to leak, it is not only a major inconvenience, but also causes costs due to repairs and machine downtime.
Since 1995, there has been one solution for all leaking seals in engines, gearboxes, differentials, power steering systems, all machines, and hydraulic systems: with LecWec Oil Leak Stop, all oil types and all oil systems can be sealed again with a success rate of almost 100%. This can be done during operation.
LecWec, as an oil leak stop, is a universal product for seals that have become leaky. It conditions every polymer-based seal and protects against drying out, hardening, shrinkage, and crystal formation.
Only 3% of the total oil quantity.
LecWec is chlorine-free.
For all oil systems and types.
Direct delivery from the manufacturer.
It happened even faster than I expected.
"I have to report positively that the level matches the oil... unbelievable. [...] I wouldn’t have believed that the steering gearbox would be sealed again after just under a week."
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"...nothing else leaked out anymore!!! I am truly very satisfied. At first, I didn’t think the product would work, but now I am completely convinced and have also saved many hundreds of euros!" - Jürgen R.
KTM SuperDuke R, model year 2012 with slight oil leakage at the cylinder base gasket
Verified review (Learn more)"I didn’t believe it, but your product is fantastic! I have an old BMW e39 with the typical oil leak problem at the oil flange gasket. I first ordered just 1 can and everything is already sealed, even though you recommend 2 cans (200 ml) for 6 liters of oil. So thank you very much!" - Andreas F.
Old BMW e39 with oil leak problems at the oil flange gasket
Verified review (Learn more)"My steering gearbox was losing so much power steering oil (about 1 liter over 14,000 km, or within 5 months, which equals the total oil volume!) that I wouldn’t have passed the TÜV inspection, and an extensive and therefore costly repair was ahead. Fortunately, I came across LecWec. When oil was still leaking after a week, I was initially disappointed, but I added a little more of the fluid. All the more pleased I was when, after about 3 weeks, I found that the oil loss had dropped to zero – the steering gearbox was sealed again!! Even after 4 months, the reservoir is still at maximum – I’m thrilled, thank you very much!" - Friedger F.
Oil leak at the steering gearbox
Verified review (Learn more)"A small puddle of oil had always collected on the underbody and then dripped onto the garage floor. I added 100 ml of LecWec to about 4 liters of oil. Since then, I have driven around 500 km and was amazed to find that there was no oil on the ground anymore. Yesterday, I removed the underbody panel and the engine compartment was completely clean, with no traces of oil at all. I would therefore like to thank you very much – the repair at Audi would have cost me €1,500!! " - Paul R.
Leak in the oil pan
Verified review (Learn more)
LecWec in different sizes
LecWec oil consumption stop for oil seals is available in three sizes: 100 ml, 200 ml, and 500 ml. The recommended dosage is 3% of the total oil volume.