Used Oil Analysis - Post Them Here - RX8Club.com



Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

Reply
 
 
 
Thread Tools Search this Thread Rate Thread
Old 10-09-2009, 10:36 PM   #1  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
TX Used Oil Analysis - Post Them Here

Okay, let's discuss our UOA's. Post em' Up!

http://www.bobistheoilguy.com/engine-oil-analysis/

Last edited by 9krpmrx8; 05-12-2015 at 05:55 PM.
9krpmrx8 is offline   Reply With Quote
Old 10-09-2009, 11:04 PM   #2  
3-wheeler
 
Flashwing's Avatar
 
Join Date: Dec 2005
Location: Phoenix
Posts: 2,734
Thanks: 0
Thanked 0 Times in 0 Posts
While not engine oil, the link to the BHR Eneos 75w-90 test is here.
Flashwing is offline   Reply With Quote
Old 10-09-2009, 11:05 PM   #3  
FLAME ON!
 
Join Date: Jul 2009
Location: Strip Club
Posts: 948
Thanks: 0
Thanked 0 Times in 0 Posts
What about the ash?
@!!narotordo is offline   Reply With Quote
Old 10-09-2009, 11:06 PM   #4  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
Yeah I contacted Charles about some Eneos. I want some 0W-50.
9krpmrx8 is offline   Reply With Quote
Old 10-10-2009, 08:44 AM   #5  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
TX

Quote:
Originally Posted by @!!narotordo View Post
What about the ash?
Not sure. I'm a little skeptical about the results though because my motor is not "new", but rebuilt.
9krpmrx8 is offline   Reply With Quote
Old 10-10-2009, 10:53 AM   #6  
Registered
iTrader: (3)
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,758
Thanks: 0
Thanked 2 Times in 2 Posts

Last edited by olddragger; 10-10-2009 at 10:56 AM.
olddragger is offline   Reply With Quote
Old 10-10-2009, 03:45 PM   #7  
3-wheeler
 
Flashwing's Avatar
 
Join Date: Dec 2005
Location: Phoenix
Posts: 2,734
Thanks: 0
Thanked 0 Times in 0 Posts
OD which of those 4 oils are mineral oils and which are synthetic?
Flashwing is offline   Reply With Quote
Old 10-10-2009, 05:04 PM   #8  
Registered
iTrader: (3)
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,758
Thanks: 0
Thanked 2 Times in 2 Posts
they are all dino.
havoline is popular in this area and many also run the castrol.
the shell diesel is the Rotella name bran
I would like to see some syns posted.
OD
olddragger is offline   Reply With Quote
Old 10-10-2009, 05:22 PM   #9  
3-wheeler
 
Flashwing's Avatar
 
Join Date: Dec 2005
Location: Phoenix
Posts: 2,734
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by olddragger View Post
they are all dino.
havoline is popular in this area and many also run the castrol.
the shell diesel is the Rotella name bran
I would like to see some syns posted.
OD
I'll have some synthetic data but it's going to be a few thousand miles before I do.

Thanks for the info. I was curious because normally synthetics don't shear nearly as much as dino oil so that could have solved your low viscosity problem.
Flashwing is offline   Reply With Quote
Old 10-10-2009, 10:11 PM   #10  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
Mine is GC 0W-30. I already have a sample kit waiting for my next 3k oil change.
9krpmrx8 is offline   Reply With Quote
Old 10-10-2009, 11:40 PM   #11  
FLAME ON!
 
Join Date: Jul 2009
Location: Strip Club
Posts: 948
Thanks: 0
Thanked 0 Times in 0 Posts
Yeah I want some 0W-50 Eneos too!
@!!narotordo is offline   Reply With Quote
Old 10-11-2009, 02:39 PM   #12  
Registered
 
rx8convert22's Avatar
 
Join Date: Jun 2007
Location: Jessup, MD
Posts: 123
Thanks: 0
Thanked 0 Times in 0 Posts
Here is a link to a post where I have posted several reports along with comments. Diesel oil rules!!!

https://www.rx8club.com/series-i-tech-garage-22/oil-report-results-147795/
rx8convert22 is offline   Reply With Quote
Old 10-11-2009, 05:47 PM   #13  
Registered
iTrader: (2)
 
Join Date: Oct 2003
Location: Portland OR
Posts: 1,666
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 9krpmrx8 View Post
Not sure. I'm a little skeptical about the results though because my motor is not "new", but rebuilt.
It will be interesting to see a longer interval. I'm curious to see what happens to your fuel percentage, given your practice of allowing the car to idle up to temperature before driving.

As an aside, it would be worthwhile for people to report weather they do full or partial oil changes for any given report.

George
GeorgeH is offline   Reply With Quote
Old 10-11-2009, 06:30 PM   #14  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
After my break in I did a max out oil change (got 5 quarts out)) from Mazda 5W-20 to GC 0W-30. Then I ran another 1500 miles and did another max out oil change (about 4.5 quarts this time). So this sample should have been all GC 0W-30. This time will be a full 3,000 mile OIC.
9krpmrx8 is offline   Reply With Quote
Old 10-11-2009, 07:25 PM   #15  
Registered
iTrader: (3)
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,758
Thanks: 0
Thanked 2 Times in 2 Posts
glad to have another diesel oil believer!
OD
olddragger is offline   Reply With Quote
Old 10-11-2009, 07:57 PM   #16  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
Also, is anything over 15W diesel oil?
9krpmrx8 is offline   Reply With Quote
Old 10-12-2009, 07:37 AM   #17  
Registered
 
Go48's Avatar
 
Join Date: Jul 2004
Location: Fayetteville, PA
Posts: 2,593
Thanks: 0
Thanked 0 Times in 0 Posts
Here's another data point. The first two samples were using Castrol GTX 5w-20. The last one was 5w-30. The car was actually an '04.
Attached Thumbnails
Used Oil Analysis - Post Them Here-oil-analysis-rx8.jpg  
Go48 is offline   Reply With Quote
Old 10-12-2009, 11:18 AM   #18  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
Thanks man, I ran castrol 10W-30 in my second engine with 3,000 mile OIC and it lasted 72,000 with almost no premix.
9krpmrx8 is offline   Reply With Quote
Old 10-12-2009, 11:29 AM   #19  
B.I.G
iTrader: (4)
 
05rx8mazda's Avatar
 
Join Date: Aug 2007
Location: AT---EIL
Posts: 1,401
Thanks: 0
Thanked 0 Times in 0 Posts
I didnt know we could use diesel oil..
05rx8mazda is offline   Reply With Quote
Old 10-12-2009, 04:29 PM   #20  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
TX

Yeah it's pretty commonly used (in rotaries and in Huge Dodge Trucks ).

Last edited by 9krpmrx8; 10-12-2009 at 05:09 PM.
9krpmrx8 is offline   Reply With Quote
Old 10-12-2009, 05:04 PM   #21  
3-wheeler
 
Flashwing's Avatar
 
Join Date: Dec 2005
Location: Phoenix
Posts: 2,734
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 9krpmrx8 View Post
Yeah it's pretty commonly used.
In regards to the RX8 I wouldn't count a group of less than 5 people common.
Flashwing is offline   Reply With Quote
Old 10-12-2009, 05:08 PM   #22  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
Quote:
Originally Posted by Flashwing View Post
In regards to the RX8 I wouldn't count a group of less than 5 people common.

oh, I meant amongst rotaries in general!! Fixed.
9krpmrx8 is offline   Reply With Quote
Old 10-12-2009, 09:48 PM   #23  
Registered
iTrader: (3)
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,758
Thanks: 0
Thanked 2 Times in 2 Posts
diesel oil may be used more than some realize---? Maybe not by the rx8 gang.

From a well known engine builder:
Yes you can run diesel oil in gas engines.. In fact most performance guys has went fully to diesel oils now due to the EPA pulling the zinc out of pass. car oils.


high amounts of ZDDP is needed in flat tappet cam'ed engines (older, non roller cam)

Due to the lower ZDDP levels alot of people has wiped out a flat tappet cam lobe in their engines.

EPA is now messing with the diesel oils too.

The new pass car ARI rating is SM and it sucks as far as anti wear goes...

The new diesel oil API rating is CJ-4 even though its much lower in ZDDP than the CI-4 oils it still has much more zinc in it than the SM gas engine oils
Source(s):
Performance/Race engine builder, 12+ years

OD

Last edited by olddragger; 10-12-2009 at 09:55 PM.
olddragger is offline   Reply With Quote
Old 10-12-2009, 09:49 PM   #24  
Registered
Thread Starter
iTrader: (45)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,730
Thanked 322 Times in 264 Posts
So what specifically is diesel oil?
9krpmrx8 is offline   Reply With Quote
Old 10-12-2009, 09:56 PM   #25  
Registered
iTrader: (3)
 
Join Date: Apr 2004
Location: macon, georgia
Posts: 10,758
Thanks: 0
Thanked 2 Times in 2 Posts
diesel oil is a better base stock with a different additive package---read on it.
OD
olddragger is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
The Prospective RX8 Skyl3r New Member Forum 141 03-20-2018 11:06 AM
I have an oil puker foxyRoXy8 Series I Trouble Shooting 19 08-18-2015 10:26 PM


Tags
amsoil, analysis, brands, castrol, dewall, gtx, intake, major, milky, oil, results, rx8, stock, uoa, zealand

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 12:41 AM.


© 2018 MH Sub I, LLC dba Internet Brands
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.