Fuel Filter Change - Chevy and GMC Duramax Diesel Forum
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Old 07-18-2010, 04:53 PM   eBay Motors  #1 (permalink)
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Fuel Filter Change

I am changing the fuel filter on my 2002 Duramax for the first time and am not sure what type of lube I can use on the o-rings? I went to Autozone and Advanced Auto and they looked at me like I was crazy when I asked for o-ring lube. If anyone can help that would be great.
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Old 07-18-2010, 05:08 PM   eBay Motors  #2 (permalink)
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Alot of people just rub alittle diesel fuel on it.
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Old 07-18-2010, 05:12 PM   eBay Motors  #3 (permalink)
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I am surprised they did not send you to the drug store for KY gel!

Most anything will help-- I use a dab of wheel bearing grease in the O-Ring groove to help hold the O-Ring in place and a little on the top. This is to keep the O-Ring from rolling and coming out of the groove when you tighten the filter. Also a little in the center seal to help it slide over the nipple.

Some just use a little diesel fuel!

Not a good idea to fill the new filter with diesel-- you will send un-filtered fuel to the injector system!
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Old 07-19-2010, 01:29 PM   eBay Motors  #4 (permalink)
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Just rub a little diesel fuel on the o-rings, thats all you need.
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Old 07-19-2010, 02:29 PM   eBay Motors  #5 (permalink)
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I've used a little but of vaseline on the 0-ring... never had an issue.
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Old 07-19-2010, 10:59 PM   eBay Motors  #6 (permalink)
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I use a little carburetor cleaner on the O ring. Slides right on!
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