How much oil additive can you add to your crankcase?
why would you want to use an oil additive. If you use a good oil and change it regularly you should never put an oil additive in your engine. If you look at what these additives really are they are mostly just thicker oil with some magic crap or so they claim that will make your car run like new again. If that is the case just put a 20w50 oil and you will have the same results. As you can tell I am not a fan of oil additives. I own and operate 3 quick lube centers and have never and wont ever sell additives. I will leave a customers oil a quart low and let them waste their money and put it in themselves.
One quart. By law automobile manufacturers CANNOT void the manufacturers warranty for using non-OEM parts (which includes motor oils, additives, antifreeze, etc.) Additives have different features and benefits, so pick one that fits your need.
A lot of people tend to think if one quart is good then five must be great. Not true. The additives are designed to work with your oil to improve it's lubricating abilities and lifespan. They do not have some properties of motor oil such as anti-foaming agents. Never use more than one quart and remember, that quart replaces one quart of oil. Do not add to a full crankcase.
