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Old 03-15-2010, 10:12 PM   #7
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Join Date: Jun 2004
Location: NC
Posts: 497
My Ride: e36,e46,e90
Originally Posted by SpeedDemon View Post
It actually only lists the M54TU... what is an M54TU?

Also, it does say for hot climates AND HPDE... the operative word their being AND and not OR. Does that mean that only hot climates where you do HPDEs should get 5w40 and that milder climates where you do HPDEs get 5w30, or does it mean that HPDE regulars should always use 5w40?
TU is for technical update, I dont think an M54TU actually exists, just the M52TU that was in 99-00 e46's before the M54 came out. I think it is just a typo.I'm sure if you call and ask bimmerworld they can tell you but the way I interpret it is that 5w40 is the way to go for track use, even in milder climates.
--1995 E36 M3--2001 E46 325i--2008 E90 335i--

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