Re: evinrude etec vs. evinrude crossflow 2 stroke which is better?
I actually own two 2007 175 E-Tecs and can tell you they are terrific motors. Quiet, no smoke, start in less than 1/2 a rev @ 480 RPM and stay there after you shift into gear, much lower fuel and oil consumption than the 150 HP carbed Merc's they replaced. If you're inclined to do any work yourself, it's mandatory to get the BRP diag software. I've had zero warranty problems, just a few rigging issues that were minor and the dealer's mobile tech took care of them @ NC and loaded new ECU MAP images if one was available each time he came to the boat.
The small block V6's have great low end torque (way better than the Black Maxes they replaced) and they are a lot quieter than a friend's pair of 4 stroke 225HP Yammie's at cruise. So far, these are the best, most reliable motors I've ever owned. The maintenance needs for the motors is very low ... they self winterize in a few minutes each, plugs last 300 hours or more, gear oil gets changed at three year intervals (only when using the specified BRP oil).
Like newer cars, a computer and some digital smarts are more useful than a good screw driver. There is a breakin, but it's totally transparent to the user. The ECU kicks it out of double oiling after about 10 hours run time over 2000 RPM. For my use (offshore fishing), these motors greatly extended the boat's range to the point I almost never get into the second tank any more. (Always did with the Mercs).
I've owned crossflows, a looper and these two. The E-Tecs are head and shoulders above the others in almost every way. The DI system is the best right now in the marketplace.