What base oil is the Shell Rotella-T?

Status
Not open for further replies.
Joined
Nov 15, 2002
Messages
8,937
Location
SC
Rotella T uses Group II and Group II+ base oils. I got this direct from an engineer at Shell. Rotella T Synthetic uses Shell's proprietary XHVI base oil, which is a Group III, but unlike other Group IIIs, XHVI is a wax isomerate, meaning the feedstock used to produce it isn't the VGO from the distiller, but is rather slack wax or waxy raffinate. This processs produces a much purer base oil, and one with a much higher inherent VI than conventional hydrocracked Group IIIs.
 
Joined
Aug 10, 2003
Messages
2,569
Location
College Dorm...
quote:
Originally posted by G-Man II: Rotella T uses Group II and Group II+ base oils. I got this direct from an engineer at Shell.
Last time I heard (from Peter Van Benthuysen) it was a mix of group I and group II?
 
Joined
Aug 22, 2003
Messages
268
Location
NY
quote:
Originally posted by G-Man II: Rotella T uses Group II and Group II+ base oils. I got this direct from an engineer at Shell. Rotella T Synthetic uses Shell's proprietary XHVI base oil, which is a Group III, but unlike other Group IIIs, XHVI is a wax isomerate, meaning the feedstock used to produce it isn't the VGO from the distiller, but is rather slack wax or waxy raffinate. This processs produces a much purer base oil, and one with a much higher inherent VI than conventional hydrocracked Group IIIs.
So is this a good thing?!?!? Only asking as the part of "rather slack wax or waxy raffinate" doesn't sound to good to me. Sounds like it could cause sludge build-up, maybe I'm wrong. [I dont know] [Confused]
 
Joined
May 27, 2002
Messages
14,013
Location
Retired | Wausau, WI
<b>Jelly:</b> It was until the latest API spec came out. Now mostly all Group II+. The Rotella streight weights still use some Group I and II mix but not the Rotella T 10W30 or 15W40. I was at a meeting last week and we talked about this very thing. So as of last Tuesday I can say my statement is correct.
 
Joined
Nov 15, 2002
Messages
8,937
Location
SC
quote:
Originally posted by Johnny: Jelly: It was until the latest API spec came out. Now mostly all Group II+. The Rotella streight weights still use some Group I and II mix but not the Rotella T 10W30 or 15W40. I was at a meeting last week and we talked about this very thing. So as of last Tuesday I can say my statement is correct.
Yes, and it was Peter who told me Group II and II+.
 
Status
Not open for further replies.
Top