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LecWec - For ALL oil systems, for ALL oils

Yes, without exception, ALL.* The following points are slanted towards the use of LecWec in vehicles, but should be understood to be just as relevant for industrial machines, where down-time can often be so costly in lost production that a "normal" repair keeps on being postponed.  

Over time, every polymere rubber seal will loose its plasticisers, and so become stiffer and shrink. At some stage, depending on the exact composition of the seal rubber, this will mean that they cease to function properly, and so leaks will develop.  LecWec replaces these lost plasticisers and in doing so causes the seal to swell by about 3%, which will cancel out any wear on the sealing lip. 

But you will no doubt sometime be confronted with someone who specialises in objections when he meets something new, who will dream up all sorts of reasons why, just for his application, LecWec will not work (or could even wreck his equipment). "It will block the borings in an automatic gearbox". But how ? LecWec forms no solid particles, it remains fluid. "It will cause the wet clutch/brake to slip". Only it does not, as several racing motorcyclists have proved. "It will change the oil". Definitely not.

Don't let yourself be diverted by such "experts". In the case of polymere shaft seals and O-rings the success rate lies over 99,9%. Only if there is already a crack in the sealing lip of the seal will LecWec not produce a positive result. Then, the stiff, dried-out lip becomes flexible again, and as the area round the rip exerts less resistance to the oil pressure, so the leak may well increase. In Germany, we hear of about 4-6 such cases per year, it is very rare.

When a motor has been treated, after the following oil change the effect will progressively be lost. But one should not add LecWec immediately to the fresh oil, as this would lead to an overdose of LecWec (which should always be avoided,. particularly for those seals which weer still always OK.  Until it starts to leak again can take weeks, or months. Only then should a further LecWec treatment be undertaken.

LecWec also works with gaskets, but in a different way. LecWec has a very high surface tension, and a very large molecule compared with oil. Where the oil is "sweating" through a very narrow  gap between gasket and metal, LecWec can "nest" into the gap and block the path for the oil. Because it is not possible to measure the gap, it is difficult to give an estimate of success for any particular case, but statistically we have established that about 60-65% of such leaks can be cured. We cannot here offer the customer more, but most are prepared to "take the risk" when they compare the price of LecWec with that of a workshop strip-down.

A cost comparison:  Several car manufacturers provide no repair kit for leaking power steering units, they must be exchanged. Cost: around £ 650-1200. Such units take 0.9 – 1.0 litres of oil. 3% LecWec – 1/3 of a 100 ml bottle, so about £ 10. (And no down-time, which makes LecWec a favourite for truck operators and industry!).

The effect of LecWec ist long-lasting.  We have been informed by customers of cases where LecWec-treated seals are still fully functioning for longer since treated than it took them from new until they developed the leak. (This is of course, as commented above, only possible where the treated oil is still present.)

LecWec has now been on the market 19 years in Germany and is well established as the market leader. "Me-too" products, often cheaper but in some cases capable of doing damage, are offered to customers as being "just like LecWec". It is also exported to over 26 countries, and to date over a million bottles have been sold.

It should here be understood that LecWec has little relevance for cars less than 5-6 years old, as oil leaks normally first develop after 6-8 years.  Which of course means that the market value of the car is well below its showroom price.  Repair costs, not just for oil leaks, have to reflect this.

We have observed that workshops which think and operate for the good of their customers (rather than trying to optimise the size of each individual bill they write), have to "fight off" customers, as such behaviour gets talked about in their district. Such a workshop Is happy to use LecWec, as it fully meets the needs of the customer quickly, freeing their time for those other customers with a real need for more workshop time.

We have observed that those workshops which, on the contrary, try to get the most turnover from each workshop visit, become known for this, and progressively have more free workshop time available to deal with urgent repairs, till they close for ever.

* Brake fluid is not oil !  Also, seals made of PTFE or Viton (almost unknown in vehicles) cannot be treated with LecWec (except as described for gaskets), as they have no plasticisers to loose, and cannot be impregnated. If there is a rip in the sealing lip of a shaft seal (very seldom, but it can happen), then too LecWec cannot repair the damage.