Is the use of motor additives recommended?

In the world of chemical products related to the automotive industry we can find the additives for engines. These additives are chemical products that, according to the manufacturers of these products, improve the lubrication and internal cleaning of the engine in the case of oils, clean the fuel injection system or clean the cooling circuit. XADO 1 Stage Revitalizant Motor Treatment – Oil Additive to Restore and Repair Engine Parts is one of these useful additives formulated for treating vital engine parts in cars with oil system capacity up to 5 qt.

For many customers, motor additives remain a great unknown. Are they really effective? Is it worth using them? It is a fairly uncertain science, with many supporters as detractors of its use.

As for the additives for the lubrication system, there are basically two types: with base PTFE(Teflon) or MoS2 (Molybdenum disulfide), which improve the internal lubrication of the engine. PTFE-based additives create a layer between the oil and the friction parts that improve lubrication between them, at the cost of gradually plugging the small oil passages of the engine, which in the long run can have an impact on the lack of lubrication in the mechanics with the consequent breakdowns. Depending on each vehicle and situation, they can help as well as get worse.


The molybdenum disulphide is a product largely used in industrial lubrication. Thanks mainly to its cold lubricating properties, it helps to create a layer adhered to the friction parts. In practice it is really effective. It is something very particular, some people say that they have noticed its effects and who does not.

In any case, from Central of the Original Spare, whenever these additives are used, we recommend you to find out as much as possible by looking for the technical sheet of these products and see if they are really compatible with the type of oil recommended by the vehicle manufacturer.

On the internal cleaning of the engine, it is necessary to think that the engine oil itself has its own specific detergent characteristics for engine. So it is not advisable to add any product for this purpose, since it could alter the properties of the engine oil and seriously damage the friction parts.

As for the cleaning additives of injection systems, the case is similar. There are those who claim miracles and who have not noticed anything. It is also true that, depending on the type of motor and feeding system, they can be effective, due to their solvent capacities of char and cinder wells. What is not recommended is to use these products in high pressure injection systems TDI, HDI, etc. These systems are calibrated under very strict parameters by anti-pollution regulations and could result in damage to vehicles.

Finally there are additives for cleaning cooling systems, radiators, etc. The use of these systems is recommended in engines with many years on or that have been a long time stopped, because these additives are made of soft solvents anti-lime and anti-rust that drag all the dirt. They significantly improve the capacity engine cooling, the operation of the thermostat and the heating. In addition, they can discover possible pores in the circuit or in the rubber sleeves that were previously covered by lime, which after the use of the additive the pore will have been uncovered and will discover the leak, being able to proceed to the immediate repair ensuring the reliability of the vehicle and not stay lying any day that the pore gave him to uncover. By using these additives, you can protect the vehicle for the next 60,000mi.


In conclusion, there are additives for engines that according to their use and function, are recommended. While others for technical reasons or of doubtful reliability are better left aside. In any case, for lubrication systems it will always be best to use the oil indicated by the manufacturer.