Quote:
Originally Posted by RED99HT
I have a '14 550 w/N63 TU, bought it new Dec 2013, 63,000 miles on it now, Running BMS stage 1 dial set at 2 pm, when I say its been running trouble free its been trouble free. Change oil between required service intervals, Zero oil burn. Oh and I average 28 mpg on Hwy, no bullshit. overall average on computer is 23.4 mpg since I bought it.
OP, if you get a new motor ask for the N63 TU to replace it.
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This is why I was torn about extending the warranty on mine or just getting a -TU equipped 550 2-3 years newer. Glad to hear it's been pretty trouble free.
That's some killer MPG too. I can bounce 24-24.5 if I peg it at 75 on a smooth highway but that's about it. I will get about 20.5 combined on a tank of Shell premium combined which ain't bad.