Curious that 2014's 2.73 would be only ≈ 250 rpm less than the 2015 3.15.
That's about right where it should be. 2.73/3.15 = 0.86666, 0.86666 * 2000 rpm = 1733 rpm
You're probably correct. As I said, it was a while ago that I drove the 2012 V6 and the ~1700 RPM might have been at 70-72 mph. I am nearly certain that the S197 and S550 have the same trans ratios.
Thanks icarumba. Funny, I have been on the site a little over two months. I feel like a veteran, but I still won't have my convertible for another two weeks +/-! :lol:
I usually average 22 mpg with 80% city driving. My best was 24 mpg when doing mostly highway on a road trip. But I'm not really to easy on my car either
That's really not bad for 90% city.
31.8 @ 75 mph is pretty good. Did you have a tail wind? One day I was curious about the mpg difference between speeds and tested it out on a very flat road in the desert. I literally went 50 miles w/o touching the brake or changing lanes w/ cruise set at 75. I started the test once the car was up to speed. I'd have driven further than 50 miles, but I noticed no change in the mpg between 40 and 50 miles and I wasn't headed anywhere. I know 50 miles probably isn't enough miles to give a definitive number. 800 miles, however, could be more accurate if you were at cruise speed the whole time, w/o dipping to slower speeds. Did you do any dipping of speed?
