E46Fanatics - View Single Post - e 46 engine knock (after oil change to non-synthetic oil) -attached video as well
View Single Post
Old 12-04-2012, 04:22 PM   #46
Registered User
Join Date: Feb 2008
Location: Philadelphia
Posts: 6,919
My Ride: M3 & ZHP
Originally Posted by 330iPilot View Post
LOL on all of those that think changing to regular oil had something to do with it. Car engines don't benefit from synthetic oil other than extended oil change intervals. Synthetic oil was originally developed for jet engines because regular oil couldn't withstand the temperatures and pressures that turbine engines produce. Conventional car engines won't produce temps or pressures high enough to break down the lubricative properties of conventional oil. There have been numerous studies done on this.

That being said, I still put synthetic in my BMW!

A little history on synthetic oil:


Not quite. The other advantage to synthetics is that they can be exposed to higher temperatures without degradation. An engine that's designed to run on synthetics may have a few localized regions of high temperatures.
TerraPhantm is offline   Reply With Quote