How many additional quarts of oil do you need?, External oil cooler question. Options

[Craigers17]

So this is probably a stupid question, but I'm assuming that if you choose to run an external oil cooler, you have to add at least another quart of oil due to the additional volume in the lines and cooler coils.

I'm also guessing that the additional volume varies depending upon the cooler location. So if a stock 2.0 - 4 takes roughly 3.5-4 quarts, how much additional oil is required? Let's assume a rear mounted unit.

Or...is it as simple as fill up the cooler and lines, install, and then fill as normal until it matches the dipstick fill line?

Any advice/ridicule is welcome. Thanks.

[Craigers17]

Thanks for everyone's input....very interesting. I would have never thought that on big sixes with front coolers, it would take up to 16 quarts. I bought a car that should be in my possession soon, and I'm thinking about relocating the cooler from it's current position up front back to the rear. If I do relocate, I would be going to a smaller cooler with a fan, which was one reason for the question.

There are a few reasons for the relocation, but I want to see it in person before I get to deep in the details. Thanks and I'll post pics when I get the car.
(IMG:style_emoticons/default/beerchug.gif)

[brant]

Thanks for everyone's input....very interesting. I would have never thought that on big sixes with front coolers, it would take up to 16 quarts. I bought a car that should be in my possession soon, and I'm thinking about relocating the cooler from it's current position up front back to the rear. If I do relocate, I would be going to a smaller cooler with a fan, which was one reason for the question.

There are a few reasons for the relocation, but I want to see it in person before I get to deep in the details. Thanks and I'll post pics when I get the car.
(IMG:style_emoticons/default/beerchug.gif)

front coolers ultimately cool better..
so depending on the wear state of the motor and its ability to maintain temp... you will bet better cooling out of a proper front system

[Craigers17]

Thanks for everyone's input....very interesting. I would have never thought that on big sixes with front coolers, it would take up to 16 quarts. I bought a car that should be in my possession soon, and I'm thinking about relocating the cooler from it's current position up front back to the rear. If I do relocate, I would be going to a smaller cooler with a fan, which was one reason for the question.

There are a few reasons for the relocation, but I want to see it in person before I get to deep in the details. Thanks and I'll post pics when I get the car.
(IMG:style_emoticons/default/beerchug.gif)

front coolers ultimately cool better..
so depending on the wear state of the motor and its ability to maintain temp... you will bet better cooling out of a proper front system

That's a valid point, and I really didn't want to get too deep in the weeds on this before I have laid eyes on exactly how things are set up with this vehicle. However, I THINK the current owner is using airflow from the holes behind the valence/spoiler area, as it is currently missing the front spoiler.

When I replace the front spoiler, I don't think there will be sufficient airflow to feed the cooler. Ideally, I would like to close those holes back. My other option would be to make a proper cutout for the cooler, however there is a better than 50/50 chance that this car is a mostly original Bumblebee LE, so I don't want to cut on it.

Much of this is supposition on my part, and I need to see it in order to really view what is going on. I've included a pic of an old car of mine with the area in question that I think he is currently using to provide airflow to the current unit. It's where the 8 or 9 black caps are....imagine if they were removed.