Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > DIY / Maintenance / Service
  The Tire Rack

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 09-29-2007, 12:34 AM   #30
DV-002
 
Drives: 2007 Toyota Yaris Liftback
Join Date: Sep 2007
Location: Lakewood, CA
Posts: 11
Quote:
Originally Posted by static808 View Post
exactly the point. all that BS on that webpage is intended to hide the fact that they are a group III oil. check this page out.

http://en.wikipedia.org/wiki/Synthetic_oil

specifically, this portion:

"Hydrocracked/Hydroisomerized = API Group III base oils. Chevron, Mobil, and other petrochemical companies developed processes involving catalytic conversion of feed stocks under pressure in the presence of hydrogen into high quality mineral lubricating oil. In 2005 production of GTL (Gas-to-liquid) Group III base stocks began. The best of these perform much like polyalphaolefin. Group III base stocks are considered synthetic motor oil in North America."

you wanted evidence, you got it. i really doubt mobil would spend tons of money to develop this process and NOT use it. here's what amsoil has on their webpage:

"Currently, each AMSOIL lubricant is formulated with the synthetic base oil or combination of base oils best suited to that lubricant’s application demands. They are optimized using the most advanced premium synthetic base oils. Although AMSOIL has publicly stated that its XL motor oils are Group III based and its other motor oils are PAO based, specific formulary information beyond that is exclusive and proprietary. AMSOIL views synthetic base oils the same as it views additives. Each has its unique set of properties, and AMSOIL, based on its extensive experience, combines them differently for superior performance in any given application or operating condition (gasoline, diesel, racing, transmission, gear, extended drain, extreme temperature, etc.). "

so their XL line is group III hydrocracked, but every other oil line is PAO based, which means group IV. the proof is in the pudding, now someone close this thread, PLEASE!!

--B
I can't find a single sentence in any of your links that says Mobil 1 Synthetic Oil is indeed a Group III synthetic.
Castrol is Group III. Castrol Blend is a mixture of Group III and conventional oils.
But as far as I know Mobil 1 is a true Group IV synthetic motor oil.
Mobil 1 is recommended by everybody I know for road car use.

Motul is the best brand of synthetic motor oil for race use . . . if you can get your hands on some.
Better yet our Yari might run best with zero viscosity Neo Synthetic oil.
DV-002 is offline   Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
best synthetic oil and m/t oil?? doodoo DIY / Maintenance / Service 122 04-03-2017 09:43 PM
Breaking in a new Yaris yaris_the_walrus DIY / Maintenance / Service 38 09-13-2007 12:02 AM
Mobil 1 versus Royal Purple caveatipse DIY / Maintenance / Service 6 09-08-2007 09:54 PM
Why Mobil Super S 10W-40??? YesHapiness DIY / Maintenance / Service 9 03-20-2007 01:15 AM
Mobil 1 spkrman DIY / Maintenance / Service 7 03-04-2007 02:37 PM


All times are GMT -4. The time now is 10:18 PM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.