ADVANTAGES
There are numerous products on the market which claim to offer greater engine protection than is available through normal lubricants. They are based on various technologies but basically all of them attempt to improve the available lubricants or coat the surfaces to be lubricated. There are four main areas in which these products fall. They are as follows:
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Thickeners-
- Marketed as lubricant extenders, they act by making lubricant oils more viscous but do not improve lubricating qualities outside normal parameters.
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Metal Surface Lubricant-
- Molybdenumbased products marketed as 'anti-knock' or lubricant additives. Molybdenum is a silvery, metallic chemical used in alloys. It consists of spherical shaped particles which fill in the irregular surfaces and act as a barrier between the surfaces to be lubricated. These spheres can abrade surfaces and can also reduce tolerances and clearances in oil paths ways.
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Graphite/ lead lubricant-
- Lead or graphite, incorporated as an additive. Graphite is a soft form of carbon which fills in irregular surfaces and acts as a barrier between the lubricated surfaces. It has a tendency to harden with heat and fracture into pumice-like particles and has been known to induce excessive wear. Lead is a heavy metal and is highly toxic. It is banned as a gasoline additive in many countries and is being phased out in most of Europe.
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Teflon/PTFE-
- A polymer used for nonsticking, slippery coatings. Surfaces are coated with a thin layer of polymer. However Teflon has been known to detach from surfaces in flakes and strings of particles which clog oil passages and filters. Neither DuPont, the manufacturer of Teflon/PTFE nor General Motors recommend this polymer for lubrication.
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MetShield - a totally new solution and an absolute technological breakthrough
- MetShield, when mixed with lubricants works on the ferrous metal surface by creating a dense alloy almost 5 microns deep, making the surface frictionless.
MetShield has no fillings to shift and clog up oil ways. MetShield has no coatings to detach and harden. It will not abrade moving parts' smooth surfaces or break down and react with lubricants.