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Itching to change my oil #4070646 04/16/16 04:08 PM
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Chris142 Online Content OP
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I was going to run my truck out to 5000 miles this time. It has the 6.9 diesel with no turbo.I have turned the fuel up as much as I dare.

The recommended oci is 2500 miles or 5000 depending on driving conditions. I definitely fall in the severe driving conditions.lots of idling,dirt roads and short trips.

But I'm running delo 15w40 and an oversized proselect oil filter. Then I read where some guys have had valve guide problems with extended oci's.

I hate to throw out good oil. But I am over the recommended 2500 miles now. I'm @ 3100 now. Decisions....decisions

Last edited by Chris142; 04/16/16 04:09 PM.

02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Itching to change my oil [Re: Chris142] #4070663 04/16/16 04:22 PM
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Since when is an "extended oci" 5K miles?

I've run 23K, supported by UOA. I wouldn't call anything "extended" unless you're going over 15K; and I wouldn't do that without UOA.

And the main filter to worry about is the AIR filter.


Last edited by Ihatetochangeoil; 04/16/16 04:28 PM.

Whatever
Re: Itching to change my oil [Re: Chris142] #4070673 04/16/16 04:29 PM
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CT8 Offline
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That is the same OCI that is on the wife's 7.3 Power smoke. If the engine is in good shape change tho oil if it is close to dying let the oil go. You could spend $30.00 and get a uoa, but that is half the cost more or less of an oil change.


2015 F150 2.7
2018 F350 6.2
Re: Itching to change my oil [Re: Ihatetochangeoil] #4070737 04/16/16 05:59 PM
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Chris142 Online Content OP
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Originally Posted By: Ihatetochangeoil
Since when is an "extended oci" 5K miles?

I've run 23K, supported by UOA. I wouldn't call anything "extended" unless you're going over 15K; and I wouldn't do that without UOA.

And the main filter to worry about is the AIR filter.

I have not done a uoa. But this nonturbo diesel loads the oil up with contaminants and unburned fuel quickly


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Itching to change my oil [Re: Ihatetochangeoil] #4070738 04/16/16 06:00 PM
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Originally Posted By: Ihatetochangeoil
Since when is an "extended oci" 5K miles?

I've run 23K, supported by UOA. I wouldn't call anything "extended" unless you're going over 15K; and I wouldn't do that without UOA.



i think a 6.9l diesel is a little harder on the oil than some 4 or 6 cyl car engine bud

Last edited by AntsinmyEyes; 04/16/16 06:01 PM.

1987 mazda rx7
2004 mazda rx8
1995 miata
2005 dodge ram
Re: Itching to change my oil [Re: Chris142] #4070762 04/16/16 06:36 PM
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eljefino Offline
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Change it-- you know you want to.

There'll be a sale on diesel oil. Stash it.

Re: Itching to change my oil [Re: Ihatetochangeoil] #4070768 04/16/16 06:42 PM
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Garak Offline
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Originally Posted By: Ihatetochangeoil
Since when is an "extended oci" 5K miles?

I would completely agree, but the OEM intervals back then for those diesels were a bit, well, conservative, to say the least. My dad's first 7.3 Powerstroke had something like a 3,000 mile severe service interval with a sump around fifteen litres.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Itching to change my oil [Re: Chris142] #4070795 04/16/16 07:03 PM
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I think it would be cheap insurance to send in an oil sample, maybe not everytime. You are wanting to extend your OCI and you turned up the fuel.

Re: Itching to change my oil [Re: eljefino] #4070849 04/16/16 08:11 PM
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Originally Posted By: eljefino
Change it-- you know you want to.

There'll be a sale on diesel oil. Stash it.
I have GALLONS of it already!


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Itching to change my oil [Re: AntsinmyEyes] #4070921 04/16/16 09:48 PM
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Ihatetochangeoil Offline
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Actually, a soot loading diesel with a 10 quart sump is an ideal candidate for an oil cleaning centrifuge and/or a bypass filter set up.

There's a fellow on here running a Puradyn bypass filter with a Cummins turbo diesel and last posting had 8K on the oil; Blackstone told him to run 4-5K more and sample again:

http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3985514/Puradyn_MTS-24_Bypass_Filter_(#Post3985514

His wear rate is under 1.


Whatever
Re: Itching to change my oil [Re: Ihatetochangeoil] #4071304 04/17/16 11:10 AM
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Originally Posted By: Ihatetochangeoil
Since when is an "extended oci" 5K miles?

I've run 23K, supported by UOA. I wouldn't call anything "extended" unless you're going over 15K; and I wouldn't do that without UOA.

And the main filter to worry about is the AIR filter.



I am not as liberal regarding term "extended". To me, anything over OEM recommended is considered extended. My Detroit Diesel Lube Manual goes so far to say that explicitly. They allow extended without voiding warranty, but demand UOA's and such confirm doable. With fuel being turned up, yeah, I would run a bypass filtration or centrifuge system to keep soot levels down. I use bypass on my commercial stuff.


Freedom is not about having the choice to do what you want, but the choice to do what you ought.
Re: Itching to change my oil [Re: Chris142] #4071326 04/17/16 11:33 AM
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The driving factor behind your factory recommendations was the quality of oil at the time. Oil has improved many times over since than. I've had conversations with an engineer from Chrysler's transmission dept and we talked about this very topic pertaining to transmissions. My 98 Dodge CTD with the 47RE severe service schedule is 15k miles. In comparison, my 13 RAM 3500 with Aisin severe service schedule is 60k miles. That's 4 times the miles mated to an engine with significantly higher torque, payload and tow ratings. He said I could easily double the interval on my 98 and possibly further with oil analysis using a certified ATF+4 oil, which I have done.

Same pertains to engine oil, although some engines are naturally harder on oil than others. I'm doing 15k intervals with my 98, which ironically is what is recommended with my 13. UOA says I can go further, but 15k is about a years worth of driving so I change it annually.


98 Ram CTD with a few goodies
01 Beetle TDI 5 speed
08 Mountaineer Premier
98 Mustang GT
05 Rincon
12 Can Am Renegade 800XXC
Re: Itching to change my oil [Re: Chris142] #4073777 04/19/16 08:50 PM
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"Turn up the fuel"???


Is this like enrichening?


If so, is it like rolling coal?

If so, does it increase horsepower?


If so, then why......who needs a 3-4 ton diesel to leap off the line? Tractor pulls!

Re: Itching to change my oil [Re: Chris142] #4108586 05/27/16 11:51 PM
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Chris,

I just traded off my '94 7.3 IDI and I changed the oil every 3K period and it has 170K on the motor and never opened up. I used Delo 400 15W-40 with no issues all year in northern Idaho. That's my suggestion with the 6.9 since the 7.3 is more or less the same motor. Bypass filter and maybe a synthetic would extend the intervals.


Mel- 2004 Ford F-250 Lariat 4X4 CC Auto 6.0 PSD
Re: Itching to change my oil [Re: Chris142] #4116746 06/06/16 11:42 AM
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polly Offline
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I have a 721d grasshopper mower with 2200 hrs. on it. Wanting to change fron usual oil to rotella t6.full synthetic. Do you think this would cause leakage.--rings--seals. Thoughts please.---polly

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