I have experienced rough idling with my 2014 crosstrek limited for about a year. during this time my check oil light has come on twice. i brought my car into the dealership in fayetteville, ar where they began the oil consumption test process. thus far the dealership has flushed my coolant and oil and replacing o-rings and valves, replaced more o-rings and my ac compressor, and completed four oil consumption tests each time i drove 1,200 miles and consumed 8oz oil (10.1oz is considered failing). my car continues to rough idle to the point that i cannot let it idle inside the garage without shaking the walls inside the house. the rough idle happens all the time, when i first start the car, after i have driven for a while, and during routine trips around town, anytime the car is idling. the dealership has advised me that rough idle and oil consumption is normal with crosstreks and nothing shows on the computer scanner. they refuse to do a mechanical check to further diagnose the issue.
Driving on the freeway at 60mph, warm day (75) a/c was on, starting to accelerate up a slight incline, the engine lost power and car started slowing down. the gas pedal/acceleration was not working. the car went limp and acted as if it was in neutral. while trying to pull over to the side of the freeway, the acceleration kicked back in as if nothing happened. this happened twice. the second time i was driving on city streets at 40mph, same conditions outside, and going up a slight hill in san francisco, the power dies/goes limp, a few seconds later, power on acceleration comes back. there was no check engine light on.
2014 subaru crosstrek vehicle consumed over five quarts of oil before reaching 9000 miles*cw the consumer also stated the dealer did not install the kayak rack securely on top of the roof. *jb