high mileage 4.8 vs 3.0 reliability
I currently drive a modded 335i and cts4 which im going to replace with a 2007 or 2008 x5 what im deciding between is the 4.8 vs 3.0. I like the power of the 4.8 but i know the 3.0 is probably a more reliable engine. But Besides the valley pipe issues is there any other major problems that are 4.8 specific.
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