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      02-20-2019, 12:45 PM   #21
richard in NC
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Drives: 2009 Z4 35i
Join Date: Jul 2009
Location: Charlotte, NC

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Quote:
Originally Posted by Ceramic Rabbit View Post
The thing about not using cruise control is interesting, if I do a big road trip with my new car (which I will have to do to drop my old car off in another state) does that mean I can't just go 75 the whole time?

You are saying I need to switch up the gears or RPM on the highway?
That is a common recommendation to vary the speeds when new. How long varies but I vary a lot the first 100 or so miles and somewhat up to 500. Supposedly a fixed RPM for a long time causes uneven ring break-in and higher oil usage over time.

Plus it gives you an excuse to play a bit, ie drop a gear and accelerate every so often. But just varying 3-5 mph over time makes a difference.

PS: One BMW that I picked up > 100 miles from home and may have used cruise on the first trip, did seem to be more loose (and flat) at a certain highway RPM. Since then I have made it a point to vary when new.
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2020 X3M non-comp, Alpine White over black : Exec Pkg, ventilated M Sport seats, 20"s
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