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Old 06-25-2019, 02:19 PM
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Default Engine Oil Brands

Most likely a question for shadetreewelder but I am going to ask it here anyway. I have heard, maybe correct, maybe not, that changing from a certain weight of oil to another weight may have detriminal effects on the engine. Does changing from one brand to another brand of the same weight present any issues? The reason I ask is that my older son asked me what brand of oil I used in the vehicle I gifted to him and was wanting to know the answer. He was thinking of using a different brand of the same weight oil and I could not give him an educated/correct answer but told him to keep using the same brand and weight oil I had used in it for years and there should be no issues. The vehicle in question is a 2007 Chevy HHR that chevy recommends 5w-30 oil. That is all that it has ever seen when I had it. The brand that I always used in it was Pennzoil.
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  #2  
Old 06-25-2019, 03:34 PM
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I am going to have to start charging for all this consulting work.

PLEASE for the LOVE of GOD, stop using the word "weight" for Viscosity or
Viscosity Grade!!! A pound of oil is a pound of oil, no matter the viscosity.

Quote:
Originally Posted by astronut View Post
I have heard, maybe correct, maybe not, that changing from a certain weight of oil to another weight may have detrimental effects on the engine.
Ummm, fuck yeah! Use what the engine manufacturer recommends! If that
recommend changes because the ambient temperature changes, then change
the oil. The only time I would recommend going off specification is if you live
where is get really fucking cold like a few of our Canadian brothers. Also
using a PAO synthetic would be a good benefit.

Quote:
Originally Posted by astronut View Post
Does changing from one brand to another brand of the same weight present any issues?
As long as it meets the same API/ILSAC/dexos specification no brand does
not matter. The starburst on the front label is ILSAC the API 'Donut' on the
back label or the dexos or dexos2 branding on the front label.

There are basically 4 major additive suppliers that formula D&I packages for
engine oils Lubrizol, Afton, Infineum and Oronite. So, there are dozens of
engine oil manufacturers out there, but they all buy there additives from
those 4 big guys. I would hazard that 80% of the engine oil formulations
out there are done by those four companies. Now everytime a new
specification it release by API, ILSAC or GM these 4 companies are part and
parcel to write their products into the specification. So everytime a new spec
is released there is better than a 50/50 chance that the additive supplier
changes. So your <insert any name brand here> changes additive suppliers
at that time. Whores would be shocked at process of changing suppliers.

Most engine oil marketeers/blenders all have the same basic formulation

Base oil A combined base oil 80-85%
Base oil B
D&I Pkg ~10$
VII 5-10%

D&I is detergent inhibitor package.
VII is Viscosity index improve, this is requires in multi-grade engine oils,
like 5W-30, etc. Straight grade like SAE 30 it is not required.
Generally 2 base oils are required to meet the viscosity specification.

Quote:
Originally Posted by astronut View Post
The vehicle in question is a 2007 Chevy HHR that chevy recommends SAE 5W-30 oil.
I don't think that age of GM vehicle requires dexos, new GM's do.

Quote:
Originally Posted by astronut View Post
The brand that I always used in it was Pennzoil.
Pennzoil is good.
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  #3  
Old 06-25-2019, 03:50 PM
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Thanks Sir! And I did not mean to get the weight/viscosity ratings/meanings all messed up. I could send you a few coins for your consulting if you have a paypal account.
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Old 06-25-2019, 04:30 PM
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Old 06-25-2019, 05:20 PM
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Quote:
Originally Posted by Shade Tree Welder View Post
I am going to have to start charging for all this consulting work.

PLEASE for the LOVE of GOD, stop using the word "weight" for Viscosity or
Viscosity Grade!!! A pound of oil is a pound of oil, no matter the viscosity.
While you're at it why don't you remind them that this thread and Moe's thread about hydraulic oil for the little tractor fall under the description in:
Quote:
Mechanical & Electrical (42 Viewing)
To include all automotive, trucks, trailers, tractors .....
Off Topics is supposed to be the forum for discussing OldRedFord's personal life and MetalWolf's medical escapades, things like that.
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Old 06-25-2019, 05:26 PM
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I am sorry cutter. Been away too long and I dont mean to ruffle anyone's feathers. I am not interested if oldredford got any lately or not or he is just taking matters into his own hands.
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Old 06-25-2019, 08:21 PM
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Quote:
Originally Posted by astronut View Post
I am sorry cutter. Been away too long and I dont mean to ruffle anyone's feathers. I am not interested if oldredford got any lately or not or he is just taking matters into his own hands.
Oh, you didn't ruffle any feathers or need to apologize. The only reason it matters is because if something isn't said once in a while you'll see more and more threads that belong upstairs drifting out of the public section & into Off Topics. Pretty soon, 90% of the new threads will be posted in Off Topics out of laziness.

The reason that matters is that "content drives participation". As little forums like ours have lost more & more participation mostly to Facebook and a few other social media, new member registrations have become scarcer & scarcer anyway. If we don't have new threads in the public forums then there will be nothing new up there to attract new members and we'll die faster.
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Old 06-25-2019, 09:55 PM
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Quote:
Originally Posted by cutter View Post
While you're at it why don't you remind them that this thread and Moe's thread about hydraulic oil for the little tractor fall under the description in:

Off Topics is supposed to be the forum for discussing OldRedFord's personal life and MetalWolf's medical escapades, things like that.
Did not notice that moved the thread.
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Old 06-25-2019, 10:43 PM
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Quote:
Originally Posted by Shade Tree Welder View Post
I am going to have to start charging for all this consulting work.

PLEASE for the LOVE of GOD, stop using the word "weight" for Viscosity or
Viscosity Grade!!! A pound of oil is a pound of oil, no matter the viscosity.

Pennzoil is good.
So what does the W stand for in 5W-30 motor oil?
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Old 06-26-2019, 12:15 AM
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Quote:
Originally Posted by milomilo View Post
So what does the W stand for in 5W-30 motor oil?
Winter

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