Quote Originally Posted by Denny View Post
My Power Tech generator has a sticker on it to change oil every 100 hours and the oil filter every 200 hours. I usually go about every 150 hours and change oil and oil filter and add a quart of Lucas additive. I could never understand adding new oil to a dirty oil filter. I always change both.
Denny, You just stated what I have been thinking while reading this thread. Why would anyone change oil without changing the oil filter ! ! !

It doesn't even make sense for a company to suggest it because it is in their best interest to replace the filter at each oil change.