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I am new to a Duramax Diesel. Is their something i need to no about a tune up for Diesels or do they get one and what do i have to do.
 

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there is no true "tune up" as gassers need. Oil, fuel, and air filter maintanence is critical to longevity. short of that, nothing else as far as the motor itself requires any action unless it has a problem........
 

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Hi, I'm Earth. Have we met?
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Excactly


Also if you have an auto trans you shoul change your spin on filter pretty regular also some where between 6 and 10,000miles dependingon how u use your truck. With thenew uls diesel out now i hlps to run some sort of fuel additive in every tank!!!


LAter
Caleb
 

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now i hlps to run some sort of fuel additive in every tank!!
I dont think we need to worry about that. Additives have, well, been added from the terminals.
 

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Tranny spin on filter

Excactly


Also if you have an auto trans you shoul change your spin on filter pretty regular also some where between 6 and 10,000miles dependingon how u use your truck. With thenew uls diesel out now i hlps to run some sort of fuel additive in every tank!!!


LAter
Caleb
Until I logged into this forum, I had no information about the spin on filter for the Allison trans. I've looked high and low in the owners manual, and the additional brochure for the allison and nothing is mentioned. I have changed the fluid and internal filter and external (had chev dealer do it) along with a fluid flush, which was recommended by the dealer at 26000. The dealer wanted to know if I wanted them to change the spin on at the same time, and I replied that if I didn't have it done, it would be like taking a shower and putting the dirty clothes back on.
Thanks for the info on the more frequent recommendation.
Steve
 

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I've established that the dealer's don't know crap...and that they just want your money. So I personally wouldn't listen to them for any reason. They charged me 48.00 for a allison spin on filter. You can get one anywhere online for 9.00.
 

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Also, I'd recomend that you buy a spare fuel filter, get the oem AC Delco. For best performance, I change them every 4-7k miles..

And I still Stanadyne to my fuel, there are a few good additives out there, and most experienced diesel owners do add something. If your in a cold region, you'll need an additive to prevent gelling.
 
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