Q: Engine oil cap popped out without a reason

asked by on November 17, 2016

My car engine oil cap came out without any reason, we noticed when we are driving the vehicle got oil smell in the car so we got a doubt and we opened the car hood , we noticed oil cap came out and oil got spilled all over ..If we think mechanic has not closed the cap properly when we gave it fot got oil change but we gave it 1 month back , if tht would be the case I could have smelled it initially why we got the smell now while driving.

My car has 97000 miles.
My car has an automatic transmission.

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