Is M1 0w40 considered a long-drain or ext int oil?

[JohnBrowning]

Yes it is a long drain oil. I think the TBN starts out in the 12 range unless I am thinking of another oil.

No lexus114 it is not "thick for a Honda" DO make sure to ask for blood thiners next time you go to the emergency room because we all know thinner is better!LOL

Seriously though stop and think about how stupid that sounds? Have we not covered too many times that their is no such thing as too thick for XXXX based on Make or MOdel????? In fact we have never seen a thicker then recommended viscosity cause harm in anything on this forum. Even in cases where say a 5W40 was tried in place of 5W20 the 5W40 did no better and no worse then the 5W20 in the application calling for 5W40......For refrence it was a FOrd Modular V8 that was used as a truck and had HWY towing time. When those crazy guys down under put 25W70 in their LS1 engines they do not spin a bearing or self distruct etc.......

Lexus do you know of any over the counter retail shelfed oil in the 5W20 or 0W20 viscosities that come with any OEM extended drain intervals or approvals like that?

On top of all of that M1 0W40 is barley a 40wt. and soon becomes a 0W30. This does not affect wear in most applications.IF left in long enough it rethickens to a 40wt.

Unlike M1 0W40 that has a nice additive package and is approved for extended drain intervals in vechiles making over 400HP German Castrol does not have extend drain approvals from anyone not even Castrol Let alone and OEM! GC 0W30 use's expensive viscosity improvers normaly only used in Expensive Synthetic Gear Lubes sold on the European market as it's maintool in preventing wear. It is useing the old HTHS idea and ensureing that it sdoes not shear with use like some products. THis has allowed them to use far less additives makeing the oil cheaper to produce with out causeing in damage or increased wear in normal applications.

I over simplied the above and I did not spell check sorry! I am watching tv in bed typing on my laptop which has a flaky small keyboard!

 

[d00df00d]

Originally Posted By: JohnBrowning
No lexus114 it is not "thick for a Honda" DO make sure to ask for blood thiners next time you go to the emergency room because we all know thinner is better!LOL

N-n-n-n-n-non sequitur!


Originally Posted By: JohnBrowning
In fact we have never seen a thicker then recommended viscosity cause harm in anything on this forum.

True.

At the same time, we know that thicker oils tend to decrease fuel economy and increase temps, all else equal. If there is no discernable difference in wear, why use the thicker oil?


Originally Posted By: JohnBrowning
German Castrol does not have extend drain approvals from anyone not even Castrol Let alone and OEM!

...except BMW LL-01.
...and Mercedes 229.5.
...and GM-LL-A/B-025

 

[Quattro Pete]

Originally Posted By: JohnBrowning
German Castrol does not have extend drain approvals from anyone not even Castrol Let alone and OEM!

People keep correcting you on this, and you keep spreading this misinformation, time and time again. It's becoming a bit boring...


Quote:

THis has allowed them to use far less additives

So, that's a bad thing? I'd rather have a more stable base oil with less additives than the other way around. But in all honesty, I wouldn't say GC has "far less" additives. Here is a comparison from recent UOAs:

Code:


GC ......... M1 0w-40

Boron 2 .......... 186

Silicon 3 .......... 7

Sodium 5 .......... 3

Calcium 1634 ....... 3091

Magnesium 498 ........ 14

Phos 837 ........ 897

Zinc 966 ........ 915



Looks like M1 has more calcium and boron, but GC has more magnesium.

Quote:
I over simplied the above

 

[Gary Allan]

Originally Posted By: d00df00d


Originally Posted By: JohnBrowning
German Castrol does not have extend drain approvals from anyone not even Castrol Let alone and OEM!

...except BMW LL-01.
...and Mercedes 229.5.
...and GM-LL-A/B-025


..but while people keep correcting you on this JB, we have SEEN GC fail pathetically as a "blind" extended drain oil in other than THE OEM SPEC'D ENGINES. Well, check that. I'd say that GC has not shown itself as an extended drain oil in all cases ..even if the service itself would be conducive to extended drains. YMMV.

I've seen 7500 in a Lexus (and other apps) where likelihood of GC making 10k was a slim or fat chance. No way was it making it a year/15k.

 

[bluesubie]

Originally Posted By: bluesubie
Originally Posted By: JoeFromPA
(...the GTX is for an experiment to "prove" that a stock LGT can run 3500 miles on a solid dino oil and NOT shear it down a grade, though other dinos won't fair so well)
...

Save your uoa money. I think the chances of it remaining in grade are slim. Well, it didn't stay in grade in my wife's moderately driven '99 Outback anyway.

-Dennis

Quoting myself here.

I stand corrected. The GTX 10w30 was actually 10.29 cst's after 3,875 miles.

I've gone 8k miles on GC and would consider that long drain since the manufacturer OCI is 3,750. With the M1, you could always sample at intervals without changing the oil.

-Dennis

 

[lexus114]

Originally Posted By: JoeFromPA
Lexus - Lots of people say anything different than 5w20 or 0/5/w30 is "thick for a Honda"

It's a meaningless statement. Cars can operate under wildly different environments with wildly different viscosities and do great. Further, many cars shear down or thicken up oils that continue to protect the vital bits even when they've crossed over into another viscosity grade.

Think about it this way: oil viscosity varies massively with temperature. But some cars run at operating temperature with oil at 180 degrees fahrenheit. Others at 215. Still others at 230-250, still considered normal operating temp.

Do you think that the oil is "too thick" at 180 or "too thin" at 250. No, it's doing just fine.

Similarly, almost any car can absorb a 1-grade difference in viscosity weight without any tangible effects whatsoever.

M1 0w40 is a low-end 40 weight that usually shears down to a nice 30 weight. My driving style is usually cruising at 3500-4000 rpms with about 6-10 trips per day to redline (and not in 1st gear, I'm talking 3rd and 4th gear trips to 8000 rpms).

It's going to be fine, viscosity wise.


Joe,your going by the old school thinking.(the old Chevy thinking) where as the thicker oil,is the better oil. That is simply not the case in today`s engines! But I am not going any further with this,as I said I`m opting out of this discussion.

At least when it comes to us/Asian motors. German engineering still demands a little thicker oil.