frequent oil changes on 6.7 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 06-13-2010, 03:18 AM Thread Starter
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frequent oil changes on 6.7

I only average abouy 3,000 miles before the change oil indicator comes on. The oil is black. Is this normal? Its an 08 with 23,000 miles. I also use Chevron Delo 400 15-40 wt. Is there a better oil?
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post #2 of 11 (permalink) Old 06-13-2010, 03:58 AM
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Originally Posted by nelson6627 View Post
I only average abouy 3,000 miles before the change oil indicator comes on. The oil is black. Is this normal? Its an 08 with 23,000 miles. I also use Chevron Delo 400 15-40 wt. Is there a better oil?
I run Fleet Guard Stratapore oil filters Part Number FL16035
Valvoline Premium Blue 15W40 ( Endorsed By Cummins)

The EGR is what causes the short oil change intervals.

Just make sure you run a low ash oil, CJ-4 Rating I believe.

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nelson6627 (06-13-2010)
post #3 of 11 (permalink) Old 06-13-2010, 04:21 AM Thread Starter
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Everyone I have talked to says to get rid of the emissions and the truck will be better in every way. Is there a way of doing this one time and not have any code problems, engine problems etc. I don't know much about diesels at all. I just want to turn the key and go, but want the best truck possible.
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post #4 of 11 (permalink) Old 06-13-2010, 04:45 AM
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you bought the right rig

Get your self some AMSOIL 15w-40 and change it every third light or 9,000 miles

Mike
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post #5 of 11 (permalink) Old 06-13-2010, 05:54 AM
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The change oil message is duty cycle based. It is coming on so often because the truck is not towing, making lots of short trips and city driving. Am I close? The more the truck works, like towing on the highway all day, the less crap gets in your oil, therefore it decides to let you run the oil longer. But putting around town it is not getting warm enough and you get a lot more EGR function.

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post #6 of 11 (permalink) Old 06-13-2010, 12:41 PM
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dont even have to be towing. i live in a rural area. most trips are minimum 30 mi one way. dail;y driver and oil change comes up no sooner than 7500 mi. jusat need to run over 55mph for at least 30 minutes every day. i would guess over 1500rpm would be just as good but not sure.

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post #7 of 11 (permalink) Old 06-14-2010, 04:22 AM
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It will be black again before you can back it out of the driveway.
The color of the oil doesn't mean much at all.
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post #8 of 11 (permalink) Old 06-15-2010, 01:59 AM Thread Starter
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Oil changes

I currently use Chevron Delo 400,15-40 wt. If I switch over to AMSOIL isn't that Synthetic? I have been told that using Synthetic causes seals to leak. I have no idea witch is the best oil. Any advise?
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post #9 of 11 (permalink) Old 06-15-2010, 03:08 AM
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it some times causes a leaks on engines with 200,000miles . . .

Most put 15-25 thousand miles on there diesel's before switching over to synthetic for break in purposes . . . Tho i only recommend going about 9,000-12,000 miles . . .

I switched my 6.5 over at 100,000 miles almost got 40,000 miles and i don't have any leaks yet . . .

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post #10 of 11 (permalink) Old 06-16-2010, 12:43 AM
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I switched to synthetic at 11,000 miles. Went with Shell Rotella T 5w40. It is a full synthetic. It has worked well for me, truck likes it better than conventional oil. Cold starts are way better.

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