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Diesel oil changes- costco

Old 08-21-2020, 08:07 AM
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Default Diesel oil changes- costco

Costco used to carry Delo 15w 40 heavy duty oil but they've switched to their own brand. Anyone know if this stuff is as good as Delo or Rotella?


Old 08-21-2020, 08:14 AM
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Made by Warren
Old 08-21-2020, 08:15 AM
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I don't know specifically, but if it's like their other branded stuff it should be equal to the name brand product.
Old 08-21-2020, 08:40 AM
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Curious too. I've been using Rotella in a pair of VP D-6's.
Old 08-21-2020, 08:52 AM
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That's a great price, I've been paying $13 a gallon for RotellaT.
Old 08-21-2020, 09:09 AM
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Warren bottles for many store brands ( Walmart's Supertech) or house brands.
Warren blends perform excellently pretty much equally with the big name brands.
Old 08-23-2020, 06:44 AM
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I have had an f250 7.3 since 2002. And before that an 1988 7.3
so over 30 years w just 2 trucks. Both Rotella only. I know Ford deserves a lot of credit for the 7.3 but I am not changing what works.
Not to say warren Costco oil is bad. Just have never understood not using the best of something to save $20 or something.
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Old 08-23-2020, 07:21 AM
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sub'd
Old 08-23-2020, 07:40 AM
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It could be Rottela. Shell owns the oil refinery. Branded under different names.

Old 08-23-2020, 08:06 AM
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Some good info over at bitog, but as mentioned it is warren oil and seems to be the same as super tech

it’s a pretty good deal but I think super tech is only $10/ gal
Old 08-24-2020, 10:54 AM
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Originally Posted by rocksandblues View Post
I have had an f250 7.3 since 2002. And before that an 1988 7.3
so over 30 years w just 2 trucks. Both Rotella only. I know Ford deserves a lot of credit for the 7.3 but I am not changing what works.
Not to say warren Costco oil is bad. Just have never understood not using the best of something to save $20 or something.
The point of the post is to try and determine if it's the same level of product as Delo 400 or other quality oils for a better price. Spending extra for no reason makes no sense.
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Old 08-24-2020, 02:33 PM
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Originally Posted by Lee Majors View Post
The point of the post is to try and determine if it's the same level of product as Delo 400 or other quality oils for a better price. Spending extra for no reason makes no sense.
Agree

I send oil samples out for analysis

My engine manufacturer recommends every 200 hours / 24 months. After sampling every 50 hours, at 200 hours, the oil lab said you are probably good for 400 hours. I ended up going to 325 (sample at 300 said keep going but i decided to change).

The manual even said you can exceed if you have a lab check it and warranty will still be in effect

Same thing with my generator. I put 350 hours they said probably another 100-150 would be a-OK but I decided to change.
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Old 08-25-2020, 06:52 AM
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Originally Posted by Lee Majors View Post
The point of the post is to try and determine if it's the same level of product as Delo 400 or other quality oils for a better price. Spending extra for no reason makes no sense.
Not worth my time at $$/hour to research- non conclusively that X oil is as good as proven Y oil to save $100 a year.
Old 08-25-2020, 10:19 AM
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It says right on it that it's CK-4/SN certified. I would have no issue using this in my boat except my engines and generator take 16 gallons to change. Much more convenient to use the 5 gallon pails for me.
Old 08-25-2020, 10:27 AM
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Originally Posted by Lee Majors View Post
The point of the post is to try and determine if it's the same level of product as Delo 400 or other quality oils for a better price. Spending extra for no reason makes no sense.
1) It's boating, you're supposed to spend more for no reason.
2) Personally, I could never be convinced to change from something that's tried and true like Rotella or Valvoline Blue or whatever on something as important as boat motors.

*** Anyone chiming in about Dino v. Blended v. Full Syn? I always used dino until this year. Just changed to T5 blended and will go to T6 full syn early next year.
Talk about wasting money, LoL.
Old 08-25-2020, 10:27 AM
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My Costco has them for $32.99.....Walmart has 5 gallon pails of Rotella for $59.

I'd use this but Costco is not close to me. Costco is $11/gal, Walmart is $11.80/gal. Even needing 13 gallons it's not worth the travel time/distance for me.


Heck, I can have Amazon deliver Rotella for $13/gal!
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Old 08-25-2020, 01:08 PM
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I just ordered a 5 gallon bucket of RotellaT from Walmart for $11.80 per gallon delivered.
Old 08-26-2020, 08:47 PM
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How much are your diesels worth?
I will put costco in my dink's outboard but not in my diesels.
Old 08-27-2020, 04:22 AM
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"Bob is the oil guy" is the place to ask all your lubrication questions.
https://www.bobistheoilguy.com/forums/

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