|
Frank lee is correct, almost every modern day motor oil for cars has detergents and additives for things like seals. While recycling the oil to clean it may help it, as far as the chemicals are concerned they're not going to be revived through a cleaning process. So by the time your interval is done, I would not put that back in the engine. I try not to skimp on my engine oil.
However, the ideas of reusing this oil in this process for OTHER projects (like the heating), now that's a cool idea. You could also use it for other things like lawnmowers, weed eaters and hell, even use it as general oil lubricant for any contraptions you may have around that use generic oil. I like the heating idea better.
Another thing to keep in mind is that some of these additives for oils are to help important things in the engine be conditioned such as seals and gaskets.
|