Return to the home page...

Go Back   Moyer Marine Atomic 4 Community - Home of the Afourians > Discussion Topics > General Maintenance

Reply
 
Thread Tools Display Modes
  #1   IP: 107.77.169.8
Old 07-01-2018, 10:45 AM
Jlmatt Jlmatt is offline
Senior Member
 
Join Date: Dec 2006
Location: Albuquerque NM
Posts: 71
Thanks: 0
Thanked 0 Times in 0 Posts
Rotella oil has changed formulation?

I bought a gallon of Rotella T1. The API rating only shows C, for compression engine, I understand it used to show both C and S (spark engine). Does that mean they changed the formulation? Are you guys still using Rotella?
__________________
Jean-Luc
1961 Pearson Triton, "Daphnis"
Reply With Quote
  #2   IP: 24.224.194.51
Old 07-01-2018, 02:50 PM
Mo's Avatar
Mo Mo is online now
Afourian MVP
 
Join Date: Jun 2007
Location: Halifax NS,
Posts: 4,180
Thanks: 69
Thanked 102 Times in 77 Posts
It's fine. Go ahead and use it. Diesel oil is better. Motor oil producers have had to comply with regulations on emissions...and phosphorus was one of them. The diesel oil still has ZDDP which is said to foul anti-emission hardware on vehicles. The "S" rated oils have less. ZDDP is a major component in the slipperiness of the oil...thus reducing wear. The 10w30 made 10 years ago was better than the stuff we get today...amazing how that works. So I've been using 15w40 in my engine for at least 5 or 6 years...AWESOME running engine.
__________________
Mo

"Odyssey"
1976 C&C 30 MKI

The pessimist complains about the wind.
The optimist expects it to change.
The realist adjusts the sails.
...Sir William Arthur Ward.
Reply With Quote
  #3   IP: 137.103.82.194
Old 07-01-2018, 03:14 PM
joe_db's Avatar
joe_db joe_db is online now
 
Join Date: May 2009
Posts: 3,022
Thanks: 27
Thanked 288 Times in 218 Posts
Quote:
Originally Posted by Mo View Post
It's fine. Go ahead and use it. Diesel oil is better. Motor oil producers have had to comply with regulations on emissions...and phosphorus was one of them. The diesel oil still has ZDDP which is said to foul anti-emission hardware on vehicles. The "S" rated oils have less. ZDDP is a major component in the slipperiness of the oil...thus reducing wear. The 10w30 made 10 years ago was better than the stuff we get today...amazing how that works. So I've been using 15w40 in my engine for at least 5 or 6 years...AWESOME running engine.
This is correct. Rotella is not suitable for modern gasoline engines. The Atomic 4 is not one of those!
Reply With Quote
  #4   IP: 71.178.83.216
Old 07-05-2018, 11:34 PM
sastanley's Avatar
sastanley sastanley is offline
Afourian MVP
 
Join Date: Sep 2008
Location: Solomons, MD
Posts: 6,482
Thanks: 482
Thanked 291 Times in 229 Posts
I am running 5w-40 Rotella synthetic in my A4.
__________________
-Shawn
"Twice Around" - '77 Catalina 30, #511 with original A-4 & MMI manifold.
She is always happy with a clean bottom!

http://www.moyermarine.com/forums/signaturepics/sigpic3231_6.gif
Reply With Quote
Reply

Thread Tools
Display Modes

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
Changed plugs, RPM high Bratina Fuel System 1 05-28-2018 02:35 PM
Why Rotella? Administrator General Interest 9 09-04-2012 11:04 PM
Rotella 15W40 smosher General Maintenance 8 06-02-2012 01:38 AM
How often should coolant be changed? Bob N Cooling System 0 11-11-2005 01:55 PM
changed coil still no spark Mark Jones General Maintenance 1 09-14-2005 07:16 AM


All times are GMT -4. The time now is 03:25 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.


Universal® is a registered trademark of Westerbeke Corporation

Copyright © 2004-2018 Moyer Marine Inc.

All Rights Reserved