I left my car running for 4hrs until I took lunch an 08 impala besides gas what else should I worry about
dirt from the bottom of the gas tank going into your engine check fuel filter also
The only thing I can think of is the converters, they are not meant for a stationary engine and could cause excessive under body heat if left idling that long and shorten their lifespan drastically. What is your reason for letting it idle? If your just trying to keep warm, there might be an alternative.
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