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Discussion Starter · #1 · (Edited)
Anyone notice slight trembling (vibration) increase when car is put into park? For me, when placed in park from drive the rpm gauge jumps around a few times every minute and especially after turning off AC in park the needle fluctuates between 750 and 500 rpms a couple times and I can feel it. Also my mpg is not close to suggested. Typically 24 mpg city and range estimator drops faster than odometer is increasing driving reasonable speeds. It goes down quite fast. Car is brand new. Purchased at 20 miles. In one week of driving, hit the gas light with 350 miles added, which is about 100 less than listed range.
Lastly, engine temperature warms up quite fast within 30 seconds it is a quarter of the way to the middle and within a minute after it is fully warmed up (needle half way).

First new car, used a 2006 until now, and didn’t have this experience. Is it normal?
 

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I know elevation and outside temps may play a role in consumption. Is vehicle in smart mode or sport. I kept mine in sport for a few then decided to let the computer decide what mode I should be in to save gas.
 

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I have noticed the idol is different when shifted to park. Not all the time but I’ve experienced it a few times. I am averaging 31-34 mpg. Rarely use sport mode and I have a fairly heavy foot (hence the 2 speeding tickets).
 

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Discussion Starter · #4 ·
Update... . Can owners look into this and try it themselves?
Steps:
When you arrive to your destination after driving (warmed up) with AC on, place the car in park and shortly after turn the AC OFF. Watch your RPM gauge. Can someone verify if this is normal? My RPMS jump around as the engine tries to stabilize itself. Only reason I’m asking this is because this may be the reason I’m only getting 370 miles range on full tank. Possible oxygen/control issue??
 
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