how come car engines just have filters? you'd never have to change your oil because it would still be clean.
>>17806557
because filters just get rid of contaminants and shit that it picks up from your engine such as iron filings, dust, dirt and other crap
You'd still have to change your oil because your oil will still oxidize, degrade, etc
>>17806557
before oil filters were used, car oil had to be replaced much more frequently. you should be happy they exist
>>17806557
>change your oil
Change what?
Filters are only for large particles not to clean the oil. They oil turns acidic from contaminantes