I have heard that Mobil 0W-40 was very prone to shearing too! I have used it in my Volvos in the past, and never really experienced any issues, however, I hear that this oil is weak when it comes to Saab Turbos. I did some research on Rotella 5W-40 and I found some very interesting information, I have used Chevron delo 15w-40 and even this oil is superb, but the prep stats and info on shell rotella 5w-40 was very informative. Rotella full syntheticquote:Originally posted by Buster:
http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=012604
What are your thoughts on M1 0w-40? The oil has shown to shear down to a high 30wt oil many times. While it would thicken back up over time do to oxidation, some don't like it bc it does shear. Wear metals are so so and usually your 5w-40's show better results.
IMO, this oil tries to be a one size fits all and with that makes some compromises. It's now SM rated. Your 5w-40's are usually loaded with more ZDDP also. Someone mentioned cleaning ability and that is why it shows higher wear metals. I don't buy that being other ester based oils like D1/M1 SUV show better results. Thoughts?
Oh and the argument that it comes factory fill in high end cars is a good point, but most of those cars hold 9 qts of oil so I'm not really impressed by that fact.
Read our primer articles on High Mileage Oil, Synthetic Oil and Kinematic Viscosity
If you google "rotella full synthetic 5w-40, look for the link that is connected to www.mercedesshop.com It talks about how Rotella T Synthetic is made with Shell's XHVI base oil, which unlike other group 3 base oils does not begin with distilled crude oil, hence of all group 3 base oils, XHVI is truly the only one that can legitimately be called synthetic. XHVI is a wax isomerate, meaning that it is made from the slack wax removed from distilled crude in normal solvent dewaxing. This slack wax is catalytically transformed (isomerized) and hydrofinished into a chemically pure base oil which rivals PAO in virtually every catagory. There are other "synthetic" oils out there based on group 3, but Shell's is unique in that it uses XHVI base oil. (And I beleive Castrol uses Shell's XHVI too.) Cheveron and Petro-Canada produce group 3 base oils that come close to XHVI, but even though these oils are all hydroprocessed and utilized the same type of isomerization technology employed in the making of XHVI, they are not the same thing. Only XHVI is made from pure petroleum slack wax and its CAS number is 92026-09-4. The CAS number for the more typical all-hydroprocessed group 3 base oils is 64742-54-7. If you want to know your synthetic oil is made from, take a look at the MSDS and look for these numbers. (The CAS number for PAO is 68037-01-4.) Interesting isn't it! Feedback please!
Best Regards
Best Regards
quote:Originally posted by Motorbike:quote:Originally posted by Buster:
One could then make the argument that RL shows more wear because it's cleaning. That I wouldn't doubt.
Or one might could argue that with all that moly they use and type of it , the formlated oil with base stock used " might " not pass one or more of the following tests and whats being seen is a bit of corrosion. And it also might well be that with the different metalurgy used in all these engines some just show different than others .
Recall my bringing attention to the sputter coated bearings used in the VW's and other Bavarian engines .
Cu Corrosion, 3 hrs @ 163C
Zn Corrosion, 3 hrs @ 163C
Pb Corrosion, 3 hrs @ 163C
Al Corrosion, 3 hrs @ 163C
50/50 Pb/Sn Corrosion, 3 hrs @ 163C
That's quite a bunch.
Keep on sharing.
Holy dead thread revival!!!
It does shear to a 30wt. IIRC, it's a thick 30wt. Being that the M54 comes FF with a 5w-30, the shearing doesn't bother me.
It's A3 and LL-01 so it meets what I look for.
It does shear to a 30wt. IIRC, it's a thick 30wt. Being that the M54 comes FF with a 5w-30, the shearing doesn't bother me.
It's A3 and LL-01 so it meets what I look for.
All things considered, I think it's the best xw40 grade out there. Next would be M1 & Rotella 5w40.
I think so too. I did use the M1 TDT 5w-40. The HTHS is higher than the 0w-40.
It was the BMW dealer oil till Mobil lost the contract to Castrol (Edge 0W40). Most BMW indys still use M1 0W40.
quote:Originally posted by sprintman:
It was the BMW dealer oil till Mobil lost the contract to Castrol (Edge 0W40). Most BMW indys still use M1 0W40.
Sprintman,what do you mean by 'indys'? Most 'race' cars are not using the oil you "think" they are...or have been paid to "say" they are running. They are using something you will never know about---and everyone in the know,is fully aware of that fact!
This 0w-40 oil is not the best oil out there by a long shot-----it cokes,and sludges. I won't use it for this reason.
This link is straight from Mobil.
http://www.mobiloil.com/USA-En...o_Engine_Coking.aspx
Realize that coking creates carbonaceous deposits(carbon) that are very abrasive like sandpaper, and consequently cause rapid wear!
-----------------------------------------------
Link Quote...
http://www.turborepair.com/
http://www.flickr.com/photos/7...20@N02/2200663966/#/
http://urbanracer.com/articles...ewer.asp?a=3283&z=42
But when the engine is shut off, temperatures can rise to 600 to 700 degrees F. inside the housing as the turbo undergoes a period of heat soak. The oil oxidizes and forms coke deposits in the housing that then act like an abrasive to wear the bearings.
Charbroiled oil can also bring down the hammer on an unsuspecting center cartridge. Coking is burnt oil residue, a hardened version of the sludge we see falling from the sky in those Castrol GTX commercials. The coked oil blocks the flow of oil through the bearing, which signs the turbo's death certificate.
quote:Originally posted by sprintman:
It was the BMW dealer oil till Mobil lost the contract to Castrol (Edge 0W40). Most BMW indys still use M1 0W40.
It's the only BMW approved oil my mechanic carries.
I'm going to give the new PU 5w-40 Euro a whirl next time.
Independent shop not Indy race cars.
What about all the turboed commercial diesel trucks that run 15w-40 Dino HDEO oil ?
quote:Originally posted by Steve S:
What about all the turboed commercial diesel trucks that run 15w-40 Dino HDEO oil ?
Commercial diesel trucks are run with a far different pattern than passenger cars. Hot shutdowns almost never occur in such trucks preventing extreme heat soaking and oil coking,not to mention the heavy duty overall design,massive sump,and oil filter system banks.
Some good reading...
http://www.bobistheoilguy.com/...wflat&Number=1962625
This probably says a lot!
"Our OTR trucks and heavy equipment ALWAYS gets a cool down period after hard use,gets ya fired if you don't!"
Nice work, Capitan. Keepin' them honest!
Now that's funny, a huckster for an oil that has yet to prove any of its claims and the word honest in the same sentence..........
Anecdotes my foot. Kirk has been using Synlube for years in several vehicles. There's your data.
Where's your data that it's not as advertised? Yes, yes, that one test re viscosity that means nothing in the real world. Assuming it was accurate. Big deal.
Have you got that Smokey yuppie mobile under control yet?
Well?
Where's your data that it's not as advertised? Yes, yes, that one test re viscosity that means nothing in the real world. Assuming it was accurate. Big deal.
Have you got that Smokey yuppie mobile under control yet?
Well?
quote:Originally posted by Trajan:
Now that's funny, a huckster for an oil that has yet to prove any of its claims and the word honest in the same sentence..........
Everyday/year I drive to work the oil proves itself!!!
When it comes to honesty Trajan,we're ALL still waiting for YOU -- to come clean!!
WELL.......
Anecdotes are no subsitute for data. No matter how hard you try to make it so.
quote:Originally posted by Trajan:
Anecdotes are no subsitute for data. No matter how hard you try to make it so.
DATA....Like the "Global warming"--data we had all those years!!
You want Data....get your own data,use-try the product and find out for yourself how good it is and be done with it and know the truth!
OR.......move on and be done with it!
Which is it gonna be? PICK ONE,and get off the pot!
quote:Originally posted by Captain Kirk:
You want Data....get your own data,use-try the product and find out for yourself how good it is and be done with it and know the truth!
OR.......move on and be done with it!
Which is it gonna be? PICK ONE,and get off the pot!
Don't expect an answer in this lifetime, mon Capitan. You know the drill only too well, my friend...
The M1 0w-40 is a fine oil. There is a great deal of data, UOAs, VOAs, etc to back that. Unlike the failure that synlube is.
But all we get, from claims that I wrecked a non exsistent thread to conventional oil is the cause of sludge, is just that. Claims. Backed by nothing more than anecdotes.
And we all know, or should know, that anecdotes are worthless as a basis to make informed decisions.
Thanks to said data, people can decide if they want to use it or not.
The same can be said for many brand name conevntional oils.Great many VOA/UOAs. The fact that new car models still spec it. That can be used to determine if one should use it or not.
Data. Not useless anecdotes,
But all we get, from claims that I wrecked a non exsistent thread to conventional oil is the cause of sludge, is just that. Claims. Backed by nothing more than anecdotes.
And we all know, or should know, that anecdotes are worthless as a basis to make informed decisions.
Thanks to said data, people can decide if they want to use it or not.
The same can be said for many brand name conevntional oils.Great many VOA/UOAs. The fact that new car models still spec it. That can be used to determine if one should use it or not.
Data. Not useless anecdotes,
