L5P fuel filter @ 10k miles - Chevy and GMC Duramax Diesel Forum
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post #1 of 14 (permalink) Old 11-02-2017, 10:45 PM Thread Starter
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L5P fuel filter @ 10k miles

Changed out the filter for the first time today. 10k miles with about 4500 of those towing. DIC read 22%. I think I will be changing these a little more often than my Ď08 and Ď05. Used to change those once a year, 12-15k miles and the DIC usually read 30-40%.




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post #2 of 14 (permalink) Old 11-03-2017, 05:09 AM
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Tried to have a dealer change mine when I got my last free oil change and they gave me the ďitís not needed at 33%Ē bs. Now I have to drive an hour for any dealer work!
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post #3 of 14 (permalink) Old 11-04-2017, 07:56 AM
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I change mine every other oil change (10K miles) no matter what. You never know what kind of junk you can pick up at any given station.
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post #4 of 14 (permalink) Old 11-04-2017, 09:15 PM
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Looks worse than I imagined it would be. I plan on doing mine every 10k as well. Oil change, grease all zerks and tire rotation every 5k. Thanks for the pic.


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post #5 of 14 (permalink) Old 11-12-2017, 04:47 PM
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What size is the socket to remove the filter bowl?

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post #6 of 14 (permalink) Old 11-12-2017, 05:00 PM
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Quote:
Originally Posted by l92denali View Post
What size is the socket to remove the filter bowl?
I used a 36mm socket.

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post #7 of 14 (permalink) Old 11-12-2017, 05:57 PM
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Nice. Thanks.
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post #8 of 14 (permalink) Old 11-12-2017, 07:35 PM
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Once a year for me, but I carry an extra in the truck, just in case something happens. (Suggested by you good folks)

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post #9 of 14 (permalink) Old 02-14-2018, 02:39 PM
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Quote:
Originally Posted by Rick_Schaber View Post
I used a 36mm socket.
I've seen both 36 mm and 1-7/16" used to remove the filter canister. They may both work but since they're not the same size which fits better?

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post #10 of 14 (permalink) Old 02-14-2018, 03:27 PM
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Quote:
Originally Posted by TX_DMax17 View Post
Tried to have a dealer change mine when I got my last free oil change and they gave me the “it’s not needed at 33%” bs. Now I have to drive an hour for any dealer work!
30% was the cut off I got from my dealer.
I’m not there yet but was just asking.

As part of my two free service visits...
I was told they would only put 2.6 gallons of def in per visit no matter what.

Buy a 70k truck... and they cheap out on you... lol.

I’ll be talking real hard with my sales guy come my second visit. Maybe he can swing something. ??

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Last edited by Roadracer760; 02-14-2018 at 03:30 PM.
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