oil question....delo or delvac..... - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 10-07-2006, 05:02 PM   #1 (permalink)
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oil question....delo or delvac.....

was gonna make the switch today from rotella and was at the counter at advance with 4 gal of delo 400....saw a lady getting oil for her husbands big rig and she was getting delvac 1300, million mile oil.....got confused then...dont take much....i saw a post on here a few weeks ago with a few guys switching from rotella ,to what i think was delo 400, with some positive reviews....which oil do most run, that dont run rotella ?? the delo said something about having syn properties ?? what oil were they talking about ?? [img]/ubbthreads/images/graemlins/shrug.gif[/img] thanks....
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Old 10-07-2006, 05:15 PM   #2 (permalink)
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Re: oil question....delo or delvac.....

btw it said low sulfur fuel compatable or formula on the delo 400......????
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Old 10-07-2006, 05:40 PM   #3 (permalink)
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Re: oil question....delo or delvac.....

http://www.intellidog.com/dieselmann/powers~1.htm This the definitive page for Powerstroke oil coolant etc.

I run the Mobil Delvac 1300 Super 15W40 because they have it at Costco. No problems> The guy before me ran Rotella.
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Old 10-07-2006, 05:58 PM   #4 (permalink)
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Re: oil question....delo or delvac.....

tx 4 the quick reply and info..........
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Old 10-07-2006, 06:12 PM   #5 (permalink)
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Re: oil question....delo or delvac.....

I doubt if there is a substantial difference for your area. I used Delvac one winter for easier starting, but there are no other advantages that I could feel or measure. I just switched to Rotella synthetic for the winter here again. Normally, I use any major brand that Wallyworld sells. Costco here doesn't sell Delvac, and I paid $90 for 4 gallons at the Exxon/Mobil distributor.
4 gals of Rotella was $67 at Wallyworld.
I am not a fan of extended mileage oil changes. Nor am I a fan of cheap oil filters.
On edit, the "syn" properties that Delo lists on the case is a spec and is not saying that it is in any way synthetic.
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Old 10-07-2006, 08:16 PM   #6 (permalink)
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Re: oil question....delo or delvac.....

delvac
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Old 10-07-2006, 10:39 PM   #7 (permalink)
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Re: oil question....delo or delvac.....

Both brands of oil are excellent.

It all depends on your maintance habits, and driving habits.
Take care of it! It will take care of You!
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Old 10-07-2006, 10:52 PM   #8 (permalink)
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Re: oil question....delo or delvac.....

[ QUOTE ]
was gonna make the switch today from rotella and was at the counter at advance with 4 gal of delo 400....saw a lady getting oil for her husbands big rig and she was getting delvac 1300, million mile oil.....got confused then...dont take much....i saw a post on here a few weeks ago with a few guys switching from rotella ,to what i think was delo 400, with some positive reviews....which oil do most run, that dont run rotella ?? the delo said something about having syn properties ?? what oil were they talking about ?? [img]/ubbthreads/images/graemlins/shrug.gif[/img] thanks....

[/ QUOTE ]

Both Delvac and Delo400 are good oils, I do think DELO is slightly superior though. BTW, I have a Big Rig myself and it has used DELO most of it's life. Almost 1.2 million miles on the Cummins N14 in it. That definately makes DELO a million mile oil. In fact, DELO is the first oil to OFFICIALLY be documented to get a heavy duty engine to over a million miles before overhaul. Delvac, just uses the "million mile oil" as a marketing catch phrase as all the major oil brands have brought engines past this magical milage point. Anyway, I recommend the Delo.

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Old 10-08-2006, 11:07 AM   #9 (permalink)
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Re: oil question....delo or delvac.....

I like the Chevron Delo.
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Old 10-08-2006, 09:54 PM   #10 (permalink)
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Re: oil question....delo or delvac.....

Delvac.

Costco here doesn't sell Delvac, and I paid $90 for 4 gallons at the Exxon/Mobil distributor.
4 gals of Rotella was $67 at Wallyworld.

$22.50/gal for Delvac? I pay $7.60 and thought that was getting too high

Iwouldn't give $16.75 for Rotella either
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Old 10-08-2006, 10:54 PM   #11 (permalink)
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Re: oil question....delo or delvac.....

[ QUOTE ]
Delvac.

Costco here doesn't sell Delvac, and I paid $90 for 4 gallons at the Exxon/Mobil distributor.
4 gals of Rotella was $67 at Wallyworld.

$22.50/gal for Delvac? I pay $7.60 and thought that was getting too high

Iwouldn't give $16.75 for Rotella either

[/ QUOTE ].......surely thats a typo or something....4 gal of delo at advance, AND a motorcraft oil filter was 45 bucks today, out the door..........
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Old 10-08-2006, 11:42 PM   #12 (permalink)
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Re: oil question....delo or delvac.....

Yup, all 3 of those brands are ~$8.00 a gallon at Autozone or Kragen.(?)
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Old 10-09-2006, 03:32 AM   #13 (permalink)
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Re: oil question....delo or delvac.....

Ouch!! Delo went up to &gt;$9.50 a gallon at WalMart compared to around $7.50 for Rotella. Looks like I'll be switching oils before long. I'll have to see what Costco is selling the 6 gal pack of Delo for these days. It was $45 that last time I bought. Any idea why Delo has shot up on price besides Chevron trying to dig that last piece of flesh out of us because fuel prices are dropping?

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Old 10-09-2006, 10:03 PM   #14 (permalink)
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Re: oil question....delo or delvac.....

You guys should do a search on motor oils. Some very interesting results. Naturally expensive brands like Shaeffers {misspelled} and Amsoil faired quite better, however Delvac won out in several tests. I started out running Rotella. After research, I went to Delvac rather quickly. I work at Freightliner here in Joplin, Mo and I give $6.00 per gallon for the Delvac and we stock Donaldson and Luberfiner filters. Of course our next batch we order in may have gone up. What hasn't [ including Exxon-Mobile's quartly profits thanks to all of us suckers, huh? ]
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