I Take It That You Don’t Have Tow Coverage On Your Insurance Policy. Since, You Seem Uncertain About What’s Causing The Knocking Then Towing It Would Be Advised.
We can only hope you are hearing “spark knock” or pre-ignition and not some bearing related sound. The fact that the oil is not very low is promising. The fact that the engine began hesitating a few weeks ago supports this, too.
Due for a change soon ? How long has that oil been in your engine ?
Any vibration ?
Did The “Check Engine” light illuminate ?
Why not tow it and if it’s not a major problem then paying the bill won’t be so bad. If it’s a major problem then a little more money won’t even be noticed.
CSA