Switching from 6.5TD to 6.6 Duramax

[Wendell Sorrell]

Okay, I'm a "newbie" here wanting advice. I have a 93 GMC 3500 crewcab 6.5TD 2swd. I am picking up a 2003 GMC 2500HD SLT 4x4 crewcab Duramax/Allison combo, (YES, more power!). The 2003 was a GMC company vehicle (demo?) and has 5K miles. Now when I bought my '93 6.5 used in 1996, nobody explained about fuel filters. I got 80K miles on the first filter. I don't like getting laughed at by mechanics and have learned alot. What should my priorities be concerning purchasing aftermarket fuel/oil/air filters and general "stuff" to protect this new Duramax Tks wendell

[RichC]

Install the Mega filter from John Kennedy as soon as you get it. Change the oem filter at least every 10, 000 miles. I just got my 02 back from the dealer today. Lost all eight injectors at GMs expense of course. However I have 75,000 miles on it now. Next time it will be my expense. Tried to get extended warranty, will only go 30,000 miles at $2,100.00.

[jbplock]

Originally posted by Wendell Sorrell:
... ...What should my priorities be concerning purchasing aftermarket fuel/oil/air filters and general "stuff" to protect this new Duramax Tks wendell Wendell,
Welcome and congratulations on your new ride! I also had a K3500 6.5TD CC Dually (98) before I bought my 03 Dmax. There are volumes of info here that will answer your questions. Try using the forum search feature (upper right on the page). You will find a variety of views and info on filters of all types.

FWIW, Here is what I use on my 03...

Oil Filter:
Baldwin B1441 (has the best specs that I have found).. I get mine from Westfleet (http://www.westfleet.com)

Air Filter:
I’m using the OEM AC Delco but am considering a switch to the UNI (http://www.unifilter.com)

Oil Bypass Filter:
OilGuard (http://www.oilguard.com) ... also see OilGuard Install (http://forum.thedieselpage.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=005320#000000)

OEM Fuel Filter:
All brands are made by RACOR no matter what the label says. Change at 10kmiles or sooner…

Supplemental Fuel Filter(s):
Many Dmax owners here on the forum have added a supplemental 2-micron fuel filter to extend injector life. Lots of options here… See 56Nomad’s MEGA - CAT - Racor - Stanadyne (Comparisons) (http://forum.thedieselpage.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=006502;p=1) thread for more info…. I added a JK Mega Filter (http://community.webshots.com/album/67970835fahHeh) with a lift pump and pre filter. (http://community.webshots.com/album/67970835fahHeh)

Coolant Filter:
Baldwin B5134. (http://community.webshots.com/album/91409363hjwmod) See a bear’s Coolant Filters (http://forum.thedieselpage.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=006730#000003) thread for more info.

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