View Single Post
  #42  
Old 07-06-2015, 02:19 PM
X5only's Avatar
X5only X5only is offline
Premier Member
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 991
X5only is on a distinguished road
Quote:
Originally Posted by Omerta View Post
LOS basically increases the oil viscosity making it more difficult to leak through the valve seals. Its not a fix, it only creates an acute fix for the burning, while causing more chronic problems down the line from additive displacement, foaming and reduced flow during coldstarts etc.
Interesting. Do you have a direct experience with LOS? Would using a high viscosity oil instead of LOS cause the same problems you mention? I spoke to a mechanic about my valve stem seals issue and he suggested to use a heavier oil such as Mobil 1 High Mileage 10W-40 if I want to delay a proper fix.

DavidClass, do you have any issues with cold start that Omerta mentions?
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.

Last edited by X5only; 07-06-2015 at 02:24 PM.
Reply With Quote

Sponsored Links