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Old 05-25-2010, 05:33 PM   #1
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Duramax maintenance

I just got a 06 duramax. This is the first diesel that ive had. What needs to be done with oil changes and such. Is there anything different than gas vehicles? Thanks guys!
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Old 05-25-2010, 05:44 PM   #2
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Your questions will be answered here.

Diesel Place - Duramax Diesel Discussion Forums
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Old 05-25-2010, 05:47 PM   #3
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What needs to be done depends on the mileage...Oil changes on a diesel are usually done at less frequent intervals than gas...
However... I believe in the old saying" Change the oil now, or the engine later"...
I change mine at 3000 miles...well in excess of the mfgr's recomendations...Costs a bit more this way, but worth it in my opinion...The trans should have a flush at some point, with fresh fluid installed...
Its a great tow vehivle...I love mine..(An 06 also)...You might want to check out the Diesel Place web page...lots of good stuff on the care and feeding of the Duramax
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Old 05-25-2010, 07:45 PM   #4
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I think your gonna wonder why you waited this long to give up spark plugs, you have already rec'd some great ideas, I'll add one.

Engine oil analysis.

I do mine about once a year or so. They are available from various part suppliers and catalogs. Clean the pan and plug area, read the directions, change oil, take sample, mail in get results. Year later or so, repeat and monitor results. I have the e-mail at work, but the report is titled from MONITOR. They monitor on my report, Wear Metals, Contaminant Metals, Multi-Source Metals and Additive Metals.

Good luck.
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Old 05-25-2010, 11:10 PM   #5
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Make sure you grease all of your chassis fittings. Like the earlier post suggested, I would also highly recommend visiting the Diesel Place forum. A great resource with lots of maintenance info. If you have the Allison, you will also need to change that filter from time to time.
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Old 05-26-2010, 06:05 AM   #6
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Great Ride

All sound advice. We have the '06 too and have loved it from the day we got it. It rides great and has power to spare, even pulling our tongue heavy '06 (1,100 lbs+ because of slide out). I follow the maintenance schedule in the owners manual and the diesel supplement and have had only one small issue covered under warranty. One of the hoses that caries transmission fluid forward to the transmission cooler developed a small leak. One day I hope to save up enough of the green stuff to isntall a programmer.
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Old 05-26-2010, 06:46 AM   #7
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Duramax

Wow!! crew cab and 8' bed we call ours the mobile annex. Don't forget to change the fuel filter with each oil change. And as earlier mentioned if you have the Allison transmission it is recommended to change the external filter fairly often.
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Old 05-26-2010, 07:40 AM   #8
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Wow! 06 is probably the best year for the DA...

(OP said Duramax so it does have the Alli)....

Wait untill you hook this puppy up and tow...switch on the tow/haul, sit back and let the miles go by...you will love towing with this truck.

Maint no different than gasser, except as noted change the fuel filter when you do the oil/filt. I carry a spare fuel filter, have never needed it, but if anything will stop a deezul it is bad fuel...so it is cheap insurance to carry a spare filter.

I run Rotella full syn (purchased at Wallys) and change out according to DIC...~10k miles. As mentioned, analysis is the best way to go, commercial truckers do this and routinely go 150-200k miles between changes. Just read an interesting white paper from Cummins about this...if I knew how to post a .pdf I'd put it up here...

You did not say how many miles on it, but you may want to change tranny fluid and filter (Alli has an external spin on filter) also..if for no other reason than to have a baseline if you do not have maint records...

Rock on and report back after you tow with your new truck!

Bill
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Old 05-26-2010, 07:47 AM   #9
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We've had three and love our "Cowboy Caddies" as I like to call them. I change the oil earlier than recommended and the fuel filter every other oil change.

I have the tranny fluid checked periodically especially after a towing season. If the fluid is getting darker we do a tranny service.

Properly cared for these fine machines will last much longer than the cab interiors. With the cost of new rigs being what they are we may have to find out just how long the interiors will hold up.
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Old 05-26-2010, 09:18 AM   #10
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We have already towed with it. Im not sure why we waited so long to go to it. Its a great truck. I just wish they would put it in a suburban. I know you can have it done, but its so stinkin expensive! The truck has 70k on it and got it for 27,000. We were forced to get it after our oil pump stopped working while we were on a trip in arkansas over Easter. The dealer said it would cost 7k to put a new engine in our 99 3/4 ton subruban. I couldnt believe the engine went out on that thing before the tranny. I just dont understand why GM put such a small fuel tank in this truck. Im looking at ordering a new tank soon. Thanks again for the imput guys, i didnt know there was a filter on the tranny. How often should that be changed and where is it located?
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Old 05-26-2010, 09:34 AM   #11
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Get on a creeper and slide under the truck and look at the transmission, you can't miss it, it looks like a miniature oil filter. I change mine once a year. And if you change it, don't forget to top off the tranny fluid to make up for what was in the old filter.
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Old 05-26-2010, 10:08 AM   #12
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Fuel Tank

If you don't want to clutter up the bed with an aux fuel tank Transfer Flow makes a 56 gallon tank that mounts between the chassis. However it is expensive. Just a note of caution on the truck. I had to replace the left front wheel bearing at 60k and the right front at 80k on my 2005 Silverado 3500. The bearing is built into the hub and you must replace the entire unit. Talking to the guys at the auto parts store they say this appears to be a common replacement part. I think you will really like the braking capability of the truck. The brakes are huge and do not seem to wear much.
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Old 05-26-2010, 10:18 AM   #13
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My "auxilliary tank" is three 5 gallon jerry cans.
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Old 05-26-2010, 11:34 AM   #14
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By the way, IMPORTANT, if you change out the tranny filter, be sure to remove the round magnet (looks like a big washer) wipe it off and put it back on before installing the filter. It may stick to the filter as you pull it off. Of course, it may be missing as a lot of these top notch service techs throw it away with the filter. If so you can pick up a new one for a few bucks at the dealer. It is just there to catch some of the metal bits. Also, at some point you may want to drain and fill you differentials (front and rear) and the transfer case. I use synthetic everything (like the previous poster I use Shell Rotella synthetic oil in the engine). One thing to remember, these trucks are sweet, but VERY (think Audi/BMW) expensive to repair so a little maintenance here and there is time very well spent. All of this stuff is pretty easy to do.

BTW I use Merchant's Automotive for a number of my Dmax needs. Nice folks, good service.
http://www.merchant-automotive.com/
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