Don't. Add no oil additives to your engine. If oil additives were really that good, the oil companys would put them in their own oil.
You don't. Add not additives to your oil. If additives worked the manufactures would add them to the oil and recommend you also do so.
To my knowledge, oil additives are a good idea only if you start using them when you buy a brand new and you are the first person to own the car. It is not a good idea to use them with a car you bought, when you are perhaps the third or fourth owner ; car with high miles, not good idea. The vast majority of oil additives are snake oil products. Leave them alone. Change your oil & filter religiously and do not put any additive in your engine.
There have been many oil additives and engine cleaners.There are few oil additives that actually help increase friction modifiers in conventional and synthetic oils.Lucas Oil Fuel Treatment is the best fuel injector cleaner.It includes both injector cleaners and fuel conditioners in one bottle.
Oil additives are something I do not recommend you use. The purpose of these additives is to rid you of your money while doing nothing for your engine.
Synthetic oil can boost your horse power. Also fuel additives.
No, they do not release friction they reduce it. Some friction will always remain in the common modern internal combustion automotive engine. Engine oil additives actually reduce the amount of friction that can be very intense and harmful to a engine, especially when starting from cold. Chemical polymers and agents that make up the engine oil additives are designed and engineered to add a level of extra protection to the standard engine oil. However, a good name brand engine oil, installed into your vehicle with proper weight and viscosity and proper oil manufacturer recommended additives -which are already in motor oil from the manufacturer - is all that is needed. No other additives should be used unless the automobile manufacturer has suggested it's use.
A facny way of saying it has additives
Basestock is refined petroleum oil with no additives.
Oil is oil. Gun oils just have different additives.
There is no fuel additive that will increase mileage. This is a myth. None of the snake oil additives work.
Viscosity and additives.