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Wal-Mart - 5 Quarts Mobil 1 - includes 0W40 - $22.66

Group III, no?
Yes. This is fine for normal change intervals, but extended drains are not recommended.

Only Mobil-1 "Extended Performance" variants are Group IV/V these days, AFAIK... and Mobil doesn't offer any in xW-40 or xW-50.

:runexe:
 
Other than Mobil 1 and boutique oils (e.g., Amsoil, Redline, Motul, Brad Penn, Swepco), are there any non-boutique producers (Shell, Chevron, Penzoil, Kendal, Conoco, etc.) of Group IV/V engine oils ?
I can't think of any offhand. The Castrol Syntec debacle lured almost all the oil makers into cheaping out to Group III while keeping the price the same. They couldn't ignore the profit potential.

Remember that not all "boutique" oils are Group IV/V. Some of Amsoil's lineup is Group III, for example. You gotta do research to find out... the BITOG forum helps quite a bit. In general, you can tell from the price... Amsoil's lower-priced oils are Group III, their highest-prices oils should be Group IV/V. This may not apply to all mfr's though.

:duck:
 
<SNIP>
Remember that not all "boutique" oils are Group IV/V. Some of Amsoil's lineup is Group III, for example. You gotta do research to find out... the BITOG forum helps quite a bit.

SO TRUE. Some of Swepco, Brad Penn, Schaeffer's, are not Group IV/V. Some use the term, "severely hydro-cracked" [highly refined?], or "High VI solvent extracted paraffinic base stocks".

My understanding is that Paraffin oils have a higher resistance to oxidation and a higher viscosity index, compared to napthenic oils. However, napthenic oils are more plentiful and cheaper.

Napthenic base-stocks yields more fuel than paraffinic crude, and most crude oils are a combination of both napthenic and paraffinic oils, so the big oil companies end up with napthenic base oils.

The best petroleum base oil is 100% paraffin base. Most boutique USA oils claim a better base stock.

:-) neil
 
My 81-years-old-this-month-Father says paraffin oils are more prone to "sluge-up". Is this true? He still won't use Pennsoil for that reason.
 
My 81-years-old-this-month-Father says paraffin oils are more prone to "sluge-up". Is this true? He still won't use Pennsoil for that reason.
Annnnnnnd... that is why I don't use petroleum oils at all. Not even in my lawn mower. Synthetic all the way (Group IV/V for me).

Pennzoil is great if you don't mind changing it every 2000 miles under normal service. I'm not interested in spending that much time changing oil.

:mushroom: :mushroom: :mushroom:
 
Unlike our ATF..... "ahem", conversations, I agree with Dave 100% on engine oil

Use a group 4/5 synthetic oil.

Motul is one that you can trust. 8100 excess or a step up is the 300V
 
So my Dad is right on this one?

I still have a bunch of "High Performance" Amsoil that I need to use up before I can try anything else. That's group 4 corrrect? That kind of info is hard to come by. When I bought it I was more concerned with it's ZDDP content. "Groups" weren't on my radar yet.

Some of my cars just can't have synthetic oil. Two of my M103 cars use too much of the stuff. For them, I just keep pouring regular oil in them. It doesn't stay in them long enough for it to matter what I use! (And no, I'm not doing a head job on these 200,000 mile 25 year old cars!)

(Dave, you have a PM.)
 
We'd need the exact name off the Amsoil label, Eric... the API rating would help too, along with the Amsoil three-letter code (AME, AMO, etc); and what year you bought it.

M103's burn so much oil you just need to change the filter every half-dozen quarts added.

:chainyank:
 
The oil is 20/50, bought back in 2008 or 09, and it looked much older than that. It's just called "High Performance". "ARO-QT". "Superior 12+ TBN synthetic formulation...."

Not ALL M103s! B5 has been stellar! Haven't had to add any yet! And we are already due for an oil change now! It helps that this car was built in 92, after the "fix" and has 100,000 fewer miles!

There's nothing wrong with B5 car that a turbo wouldn't fix!

Besides, as you already know, B4 is comming....
 
Thanks Dave!

Thanks to the OP too for the heads up on the deal, even if no one here wants to take advantage of it. It's nice that he is looking out for us!

Regards,
Eric
 
I'd explain it, but I know it will be pointless for people that don't understand 0WXX oil
 
I'd explain it, but I know it will be pointless for people that don't understand 0WXX oil
I do, that´s why my question.
036 doesn´t need 0W40, for the rest you got speed limit.
BUT- if it´s sooo "cheap"- of course is a must.
I get any oil for 2-3 Euros here.
 
Since when do you need 0W40 in US? :D:D:D

I do, that´s why my question.
036 doesn´t need 0W40, for the rest you got speed limit.
BUT- if it´s sooo "cheap"- of course is a must.
I get any oil for 2-3 Euros here.

I'm sorry, you must think I was refering to Mobil 1 0W40, a group III

Your post only mentions 0W40 in general

I'm talking about the benefit of a 0W oil in general, not one brand.

I use 5W40 Motul, but if I were to use a 0W40 it would be a group IV
 
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I noticed that the $22.66/5qts is also for Mobil1 15w50. Is this still a decent oil for 5K miles change intervals ?

Anyone know if the Mobil 1 0w-40 is a Group IV ? Or is only the Mobil 1 5w-40 SUV/Diesel in gallon containers Group IV ?

:-) neil
 
I noticed that the $22.66/5qts is also for Mobil1 15w50. Is this still a decent oil for 5K miles change intervals ?
SHould be fine for 5k intervals with normal service.


Anyone know if the Mobil 1 0w-40 is a Group IV ?
Not sure. I *think* it is Group IV. I do not use this viscosity and have not researched it.


Or is only the Mobil 1 5w-40 SUV/Diesel in gallon containers Group IV ?
The 5W-40 has been Group III since it changed to CJ-4 rating about five years ago. Don't shoot the messenger, etc...

:duck:
 
From what I've read researching Mobil 1, it more likely the not it's a group III

Especially at that price point.

I'm sticking with Motul or Redline


The 15W50 has a higher zinc & phosphorus then 0W40
 

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