Extreme Power House
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Blackstone Labs: 325i oil analysis at 65K miles

Thread Tools Search this Thread
      10-25-2010, 08:01 PM   #1
AlanAZ's Avatar

Drives: E90 325i sport manual
Join Date: Aug 2009
Location: Scottsdale, AZ

iTrader: (4)

Blackstone Labs: 325i oil analysis at 65K miles

I bought this Arizona car, 06 325i, over a year ago with 59,000 miles. It had been dealer maintained, with I believe just the computer prescribed oil changes, the last one 10,000 miles before I bought it.

I had the indie shop that was now selling the car do an oil change, BMW 5w30. After 1,000 miles with 3 tanks of Techron to flush the fuel system, I changed out the oil for Mobil 1 0w40 (it idles smoother in the very high temps here.) That fill was in for 5,250 miles and this analysis is on it (stock oil and air filters.) I will follow Blackstone's recommendation and change at 7,000 miles. Next lab at 90,000 miles or as I get ready to sell it.

Pretty much confirms the conventional wisdom that 7,500 miles between changes is optimal for a NA (I did the same on my E46.)
Attached Images
File Type: pdf IMG.pdf (958.9 KB, 160 views)
File Type: pdf IMG_0001.pdf (1.29 MB, 158 views)
File Type: pdf IMG_0002.pdf (718.9 KB, 125 views)
Appreciate 0
      10-26-2010, 08:15 AM   #2
Major General
F32Fleet's Avatar

Drives: 2015 435i
Join Date: May 2005
Location: Southeastern US

iTrader: (0)

Aww shucks..No TBN test??
Appreciate 0


analysis, blackstone, lab, mobil 1, oil

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -4. The time now is 09:15 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST