Quote:
Originally Posted by Cbtech
doesnt that cause you to have a quart of dirty oil in the pan with every change?
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If you are doing your oil changes on schedule the oil shouldn't be dirty (if it is, you have bigger problems to worry about). You will have some "old" oil left in the cooler but it shouldn't be enough to matter or negate the benefit of a cooler. It's a good idea to do a complete change every now and then, especially if you push the engine hard, but, with modern lubricants, not a big deal.