Is 10w30 thinner than 0w40 at 40c?

[OVERKILL]

Originally Posted By: webfors
Originally Posted By: bluesubie
Originally Posted By: CATERHAM
Originally Posted By: webfors
So for climates that rarely see below freezing, 10w30 is *not* obsolete

Quaker State Ultimate Durability 10w30 with it's 157 VI is one of the better 10w30 syn's but it still pales in comparison to Quaker State Ultimate Durability 5w30's 172 VI or better still Pennzoil Platinum 5w30's 177 VI. Since the 10w30 is the same price as the equally shear resistant 5w30 why would one buy it? I certainly wouldn't, and that'sv why the grade is "obsolete" at least when it comes to synthetic oil.

In my turbo application, I would choose the 10w30 over the 5w30 based on the better volatility (11.1 vs 12.3).

-Dennis


Right. And try to find me a 5w30 with an HTHS of 3.5+... and you can't include GC

Why BMW's own 5w30 of course

Made by Castrol.

 

[Quattro Pete]

Originally Posted By: OVERK1LL
Originally Posted By: webfors
Right. And try to find me a 5w30 with an HTHS of 3.5+... and you can't include GC

Why BMW's own 5w30 of course

Made by Castrol.

Also Mobil 1 ESP 5w30, available at PepBoys here. Not sure if anyone in Canada carries it...

Castrol SLX Longlife III is another one, sold through VW service departments.

 

[Garak]

Originally Posted By: webfors
Right. And try to find me a 5w30 with an HTHS of 3.5+... and you can't include GC


Discontinued Esso XD-3 5w30 HDEO? It certainly ain't thin.

 

[martinq]

Originally Posted By: webfors
Right. And try to find me a 5w30 with an HTHS of 3.5+... and you can't include GC

Red Line:
5w30, HTHS of 3.8
0w40, HTHS of 4.0
5w20 and 0w30 are close with HTHS of 3.3, 3.2
http://www.redlineoil.com/content/files/tech/Motor Oil Product Data.pdf

 

[bluesubie]

Motul X-clean 5w30 has an HTHS of 3.5. Then there's RLI, and I believe G-Oil, but it's not listed in data sheets.

-Dennis