Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 10-05-2011, 05:33 AM   #1
Registered User
 
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,557
UOA for 2006 987S Mobil 5W50 vs Red Line 5W40

As promised, here is my most recent UOA.

Info:

Almost 45,000 miles.
Owned since new.
This is the 7th oil change, first change done at about 1,000 miles.
First oil change was Mobil 1 0W40.
Oil changes 2-6 were Red Line 5W40.
Started doing UOA's on oil change #4.
Most recent report was for Mobil 1's 5W50
OEM filters.

I like the results of the Mobil 5W50 and plan to stay with it at least another year, or much longer. I expect my next UOA to improve (since the car will be near 100% 5W50, I assume there was a small amount of Red Line still in her veins).

You can see a big improvement in the UOA's when I cut the oil change interval down from about the 8,500 (TBN's were still good) mile mark to the current 6,000 miles mark.

You can see how the engine was still breaking in after 30,000 miles.

Keep in mind, the "Universal Averages" are for owners who average less than 4,000 miles on the drain interval.

As a side note, I think the elevated flash-point is due to Chevron Fuel System cleaner, but I can't prove it yet, That's why I add the Chevron on the last tank of gas prior to the oil change (about 400 miles before my planned yearly oil change).

Do rain. No winters. And when driven, the car usually does over 300 miles in a trip. I routinely drive 200 miles on the highway to hit 120 miles of spirited country roads in SW Wisconsin.
Attached Images
File Type: pdf Boxster Oil Analysis Fall 2011 Forum.pdf (69.1 KB, 468 views)
Flavor 987S is offline   Reply With Quote
Old 10-05-2011, 10:28 AM   #2
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
Very good wear metals, especially Fe. Also, tha additives, Zinc, Phosphorus in Red Line look very good. 500+ Moly! Why did the moly numbers go down so drastically?

M1 5-50 looks good too. Those are about the numbers I get with M1 0-40.
__________________
Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
san rensho is offline   Reply With Quote
Old 10-05-2011, 11:56 AM   #3
Registered User
 
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,557
Quote:
Originally Posted by san rensho View Post
500+ Moly! Why did the moly numbers go down so drastically?
Years ago, I asked Charles Navarro this question (and Red Line). Moly is a friction modifier, and you can see how Red Line did a refromulate. Maybe to save cost?? Don't know.
Flavor 987S is offline   Reply With Quote
Old 10-05-2011, 11:58 AM   #4
Registered User
 
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,557
Here are Blackstone's explanations for a UOA:

http://www.blackstone-labs.com/report-explanation.php
Flavor 987S is offline   Reply With Quote
Old 10-05-2011, 05:44 PM   #5
Registered User
 
Join Date: Aug 2005
Location: Ohio
Posts: 380
Garage
Quote:
Originally Posted by san rensho View Post
Very good wear metals, especially Fe. Also, tha additives, Zinc, Phosphorus in Red Line look very good. 500+ Moly! Why did the moly numbers go down so drastically?

M1 5-50 looks good too. Those are about the numbers I get with M1 0-40.
1973 Opel manta--you must be the other guy in the US that bought one.

Great car just needed more HP.
__________________
2013 Boxster S
2006 Boxster--sold
1999 Boxster--sold
MikenOH is offline   Reply With Quote
Old 10-06-2011, 03:27 AM   #6
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
Quote:
Originally Posted by MikenOH View Post
1973 Opel manta--you must be the other guy in the US that bought one.

Great car just needed more HP.
Best deal I ever made on a car. I bought it for $350.00 and I must have put 70k miles on it driving all over the country. Wasn't much to look at, interior and body were very rough, but it just wouldn't die.

Yeah, underpowered, but my brother lost his license while driving it, got caught going over 100 mph.
__________________
Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
san rensho is offline   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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:02 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page