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Engine Maintenance Mode

13984 Views 16 Replies 14 Participants Last post by  obermd
So I see that the car will notify me when it wants to do an EMM gas burn. My question is can I delay this burn until I know I'll be driving downhill for the 10-15 minutes it will take to run this cycle or should I just put the car in Hold mode for this stretch of my commute after I see this warning?

I figure if the car is going to do this then I want to get the most use of the gas during this burn.
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You can delay EMM for up to a day. And EMM does not burn much gas .. about 0.03 gallons or so ...
The Gen II performs EMM slightly different than the Gen I. On a Gen II when you accept EMM you MUST start driving, after about a mile the ICE will start. And as others have said the entire process takes about 10 minutes and will consume exactly .03 gallons of gas.
This is actually a good improvement in Gen 2. I once deferred EMM in my Gen 1. The next day, I remote started the car (it was hot) but when I entered the garage, it was full of gasoline exhaust fume (yuck). Because it was over 24 hrs later, the engine had started even though I was just trying to precondition the car! This should not happen in a Gen 2 because car has to be in Drive for EMM to start. Pretty good solution.
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