I just did some half-hearted Google research, and seem to be seeing conflicting results. Some sources indicate 5 quarts with filter for that engine, some indicate 6.. If you have your owner's manual, that'd be the sure thing, I would think.
Assuming you've checked the obvious. (oil filter tight? oil plug tight?)
I had some considerable experience with a '92 Crown Vic a few years back, and I do seem to recall that taking 5 quarts.
Also, these things *should* have a "low oil" warning light on the dash, (separate from oil pressure..) that lights when you are 1 quart low, or perhaps a bit more. I know my '86 does, I use it all the time.
I suppose one could consider clogged oil passages, but I've simply never heard of it with these...
Assuming you've checked the obvious. (oil filter tight? oil plug tight?)
I had some considerable experience with a '92 Crown Vic a few years back, and I do seem to recall that taking 5 quarts.
Also, these things *should* have a "low oil" warning light on the dash, (separate from oil pressure..) that lights when you are 1 quart low, or perhaps a bit more. I know my '86 does, I use it all the time.
I suppose one could consider clogged oil passages, but I've simply never heard of it with these...