Black soot on the end of tailpipe and very bad gas mileage

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Black soot on the end of tailpipe and very bad gas mileage #938533 04/02/09 06:26 PM

Joined: Jun 2007

Posts: 33

mattd

Getting the Wheeling Fever

Around the begining of last winter I noticed a huge dip in my mileage. My 1997 4-litre Jeep Grand Cherokee has an 80-litre tank and was getting around 550KM, since the winter 80-litres gets me 480KM. I just noticed black soot around the end of my tailpipe and assume that is a result of the bad gas mileage. I put in new plugs, cap and rotor about 20 000 KM's ago and don't know what else to do.

Entire Thread
Subject	Posted By	Posted
Black soot on the end of tailpipe and very bad gas mileage	mattd	04/02/09 06:26 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	Bigbird79	04/02/09 08:17 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	BigJim	04/02/09 09:49 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	mattd	04/02/09 11:23 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	mattd	04/02/09 11:27 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	Bigbird79	04/02/09 11:42 PM
Re: Black soot on the end of tailpipe and very bad gas mileage	mattd	04/03/09 01:19 AM
Re: Black soot on the end of tailpipe and very bad gas mileage	BigJim	04/03/09 01:36 AM
Re: Black soot on the end of tailpipe and very bad gas mileage	Bigbird79	04/03/09 03:49 AM
Re: Black soot on the end of tailpipe and very bad gas mileage	mattd	04/03/09 03:19 PM

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