Alright, I'm confused.
I've had my mustang on the lift for about 5 days doing a T5 swap and I figured I'd change the engine oil today. So I drain the old oil (which was black) and then put the drain plug back in and unscrew the old filter. The filter didn't look too bad on the outside. I suppose I didn't drive the car too much after the last oil change (the mustang sat for a year). I get the filter off and it is almost completely clean! No oil residue or anything. It's like oil was never run through it.
I have run the car for at least a few hours since I started working on it recently. The car runs fine with no valve noise or anything. Is there any reason the oil filter would be bypassed? Should I be worried?
I've had my mustang on the lift for about 5 days doing a T5 swap and I figured I'd change the engine oil today. So I drain the old oil (which was black) and then put the drain plug back in and unscrew the old filter. The filter didn't look too bad on the outside. I suppose I didn't drive the car too much after the last oil change (the mustang sat for a year). I get the filter off and it is almost completely clean! No oil residue or anything. It's like oil was never run through it.
I have run the car for at least a few hours since I started working on it recently. The car runs fine with no valve noise or anything. Is there any reason the oil filter would be bypassed? Should I be worried?