Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)

X5 E53 (1999 - 2006)
The X5 SAV Forum

Reply
 
Thread Tools Display Modes
  #1  
Old 04-18-2014, 01:00 PM
JetSlicer's Avatar
JetSlicer JetSlicer is offline
Officially Welcomed to the 'Fest
Location: Dallas, Texas
 
Join Date: Jul 2009
Posts: 150
Mein Auto: '03 e54 4.4i
Ticking...4.4i

Hey Bimmer Humans,

So...I enjoyed an aggressive week of driving the 4.4i ('03 4.4i 136,000miles) in manual shift mode, simulating F1 apex lines and entry speeds.

3 weeks later, and after a full tank of 87 octane gas (specs call for 93 only), a ticking from the engine developed.

After being on the second fillup of premium 97, additives such as engine lifter lubricant and sea foam as well as slick 50, the ticking has not ceased.

An executive global engineer for Dow chemical shared that any change to a chemical process takes a minimum of 3 process changes when dealing with liquid combustion (ie 3 tanks of gas) to counter any degradation of performance due to incorrect spec'd fluid dynamics). I have one more tank to try to meet this requirement.

If it is not the gas, then it is probably the lifters. Any experience with this issue? Any input greatly appreciated in advance.

Roll Roundel,
Jet
__________________
Reply With Quote
Ads by Google
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)
Today's Posts Search
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



Forum Jump


All times are GMT -7. The time now is 01:26 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms