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Q: My car has an oil leak and a gas smell, could this be an emissions issue?

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Oil leak left side looks to be vacuum pump oil leak maybe the o-ring, would this cause decreased mpg? No o2 codes. I want to know if this would be emission problem, can smell gas in exhaust at tail pipe. Could it be an emissions warranty issue?

My car has 38000 miles.
My car has an automatic transmission.

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