[maxy]

I have 8000 miles on my 07 duramax .And my cluster says 45% left .Is it time to change it or should i wait.I dont want any problems.

 

[cumminstrokthis]

I would, they are only 36 bucks from my dealer and its easy. I just did my LBZ with 9,400 on it and DIC said 36% and I culd tell a difference

 

[RickDLance]

If you want to do it accurately, Kennedy Diesel has a gauge to show the fuel filter condition while it's on the truck. AFAIK, he's the only vendor that has them.

If not by a gauge, I would recommend every 10,000 miles. There are several vendors here that sell the fuel filters.

 

[truckie481]

I waited untill it reached 5% and I have had no problems.

 

[ZL-1]

Some people have put a lot of miles on a fuel filter, over 18,000 miles and more and they had no problems. Some have only gotten 2,000 miles on a filter. It varies, some people not knowingly get very bad fuel and have problems. So, change often, keep a fresh filter on, say at least 8,000 miles and you will be ready for a problem if it happens. www.gmdieseltech.com has good prices on all oem GM filters...

 

[maxy]

I did my fuel filter today , there is a difference from what i can tell.Also did a trans service .Dealership did it all of course.

 

[BudTX]

I would recommend every 10,000 miles. There are several vendors here that sell the fuel filters.

Ditto. Fuel quality varies greatly, and every 10k is a good rule of thumb and beats the heck out of changing one on side of the road somewhere.