Oil? - Chevy and GMC Duramax Diesel Forum
07.5-2010 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 09-04-2011, 03:58 PM   eBay Motors  #1 (permalink)
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Oil?

New to the Duramax. Need to change the oil and dont have a owners Manuel. Just wondering what oil I should run and how much oil does my truck need. It's a 08 lmm. Thanks guys

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Old 09-04-2011, 04:29 PM   eBay Motors  #2 (permalink)
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Rotella, amsoil or mobil delvac...your choice. Oil Capacity:10 quarts w/filter
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Old 09-04-2011, 04:32 PM   eBay Motors  #3 (permalink)
EFILIVE,y u no DSP5 LML??
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Quote:
Originally Posted by BlowingCoal0311 View Post
New to the Duramax. Need to change the oil and dont have a owners Manuel. Just wondering what oil I should run and how much oil does my truck need. It's a 08 lmm. Thanks guys

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15w40 of what ever brand you want. Everyone runs and thinks something different. !0 quarts. BTW get a fumoto valve for the pan. A vendor on here can get you one.
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2011 Chevy LML. No DEF for me.
I got tint and tires but i'm not telling what % or what size......
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I take turbo dumps when I eat lots of chili. Sometimes they are loud.
See Will @ Troll Performance

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Old 09-04-2011, 04:38 PM   eBay Motors  #4 (permalink)
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I use only high quality 15w-40 whale or dolphin oil

only the best for my D-max


Also obligatory




Search button bro...it can be your friend
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Old 09-04-2011, 04:43 PM   eBay Motors  #5 (permalink)
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As stated above, Rotella, Mobil or AMSOIL. Any quality synthetic will do you a good job. Most run 15W-40, some run a 5W-40 in the winter months. Make suer you run a good filter too. Mobil 1, AMSOIL, or AC Delco are the preferred by most.
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Old 09-04-2011, 04:46 PM   eBay Motors  #6 (permalink)
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amsoil 15w-40 is what I run, just stay away from fram filters
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Old 09-04-2011, 04:49 PM   eBay Motors  #7 (permalink)
EFILIVE,y u no DSP5 LML??
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Quote:
Originally Posted by BUBBA3M View Post
As stated above, Rotella, Mobil or AMSOIL. Any quality synthetic will do you a good job. Most run 15W-40, some run a 5W-40 in the winter months. Make suer you run a good filter too. Mobil 1, AMSOIL, or AC Delco are the preferred by most.
Why everybody hating on Delo??? no one wants to mention Delo 400LE by chevron. It's the oil i use. Did i mention Delo 400 made by Chevron?
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2011 Chevy LML. No DEF for me.
I got tint and tires but i'm not telling what % or what size......
Quote:
Originally Posted by DMAXchris View Post
I take turbo dumps when I eat lots of chili. Sometimes they are loud.
See Will @ Troll Performance

Thanks to Willie at
Synthetic motorsports
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Old 09-04-2011, 04:52 PM   eBay Motors  #8 (permalink)
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Greg I think you forgot Delo400, I heard Chevron makes it
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Old 09-04-2011, 04:58 PM   eBay Motors  #9 (permalink)
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If your DPF is in tact, make sure you run DPF friendly oil.

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Old 09-04-2011, 05:03 PM   eBay Motors  #10 (permalink)
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That question has been asked a lot. There are a lot of threads here about this very subject. Do some research on here. I prefer and sell AMSOIL synthetics. There are countless opinions on what everyone runs. Rotella, AMSOIL, Schaeffers, Mobil1 and others are all popular.

Don't forget about good filtration. Go with a mobil1 or AMSOIL EaO filter. These both provide 98+% nominal filter ratings below 20 microns. 18-19 on the Mobil1 and 15 microns on the AMSOIL.

If I can answer any questions about AMSOIL, please don't hesitate to ask.

Take care,
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