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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Jul-11-2017, 06:35:07 AM   #21
Speed Monkey
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Default Re: What Transmission Fluid? Where to buy?

I'm using Motul gearbox lube; it was suggested by the ECS rep. I used the factory fill for 10+ years except recently when ECS did not have the genuine BMW gearbox lube on the shelf.

About that Motul lube, it has made the shifting feel much more precise and weighty, surprising enough. The shift feel has never felt better, but I have to go through this awkward routine EVERY MORNING: slot into reverse to back out the driveway, and stop; while stopped, clutch in again and gently move the stick in and out of both 1st and 2nd gear. Slot it into 1st and move off slowly, then STOP; clutch in and again move the stick gently in both 1st and 2nd gear. Then and only then will 2nd gear slot in precisely with normal shift lever effort.

Since using Motul, that first shift into 2nd gear will not happen with normal lever effort after the M sits overnight. There is simply too much resistance so naturally I do not force the matter. Other than this strange ritual, the gearbox shifts beautifully and almost has a bit of that 1903 Springfield or Mauser rifle bolt precision feel, so to speak, like that in a S2000. I would not suggest using Motul in a SMG gearbox.
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Old Tue, Jul-11-2017, 12:36:34 PM   #22
SliM3
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Default Re: What Transmission Fluid? Where to buy?

If I'm reading correctly GL-4 is old news and pretty much obsolete.


Quote:
GL-4; Specified for hypoid gear service under severe service but without shock loading. This classification is essentially obsolete but is still specified by some manual transmission/transaxle manufacturers. Implies an EP/AW additive package that contains 30% to 50% less S-P additives than the GL-5 service classification. Some Marine Gear Lubes fall into this classification, especially the full Synthetic Marine Gear lubes and specialty blenders MT lubes that use high levels of esters.

GL-5; Specified for hypoid gear service but with shock loads and severe service operation. Usually meets Mil-L-2105D and in most cases, is the multipurpose automotive gear oil. Most 75W90 to 75W140 grades meet the GL-5 classification. This grade has a high level of Extreme-Pressure additives that could be mildly corrosive to nonferrous parts, such as brass, bronze and aluminum parts. Most of the modern GL-5 lubes contain metal deactivators that prevents attacks by the extreme-pressure additives. In addition to EP additives, these lubes contain rust inhibitors, defoamants, friction modifiers, thickeners, and Viscosity Index Improvers.
As mentioned, I've had no issues with my current fluid + I shift upwards of 8500-8800. +10 years on these cars and I'm almost positive fluid technology has changed significantly. One of the reasons I switched SMG and PS fluid to a DEX/Merc VI, which rates far better than the Pentosin.
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Old Tue, Jul-11-2017, 02:59:21 PM   #23
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Default Re: What Transmission Fluid? Where to buy?

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Originally Posted by SliM3 View Post
If I'm reading correctly GL-4 is old news and pretty much obsolete.




As mentioned, I've had no issues with my current fluid + I shift upwards of 8500-8800. +10 years on these cars and I'm almost positive fluid technology has changed significantly. One of the reasons I switched SMG and PS fluid to a DEX/Merc VI, which rates far better than the Pentosin.
You aren't reading correct. GL-4 and GL-5 designations have nothing to do with syncro oil specs, which is half of proper transmission oil selection. They denote how it functions as a gear oil.

Good chance most GL-5 oils will destroy your syncos over time as they eat(peel is probably a more accurate term) yellow metals, but ultimately you are free to make whatever decisions you want.
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Old Tue, Jul-11-2017, 03:33:24 PM   #24
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Default Re: What Transmission Fluid? Where to buy?

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Originally Posted by SliM3 View Post
If I'm reading correctly GL-4 is old news and pretty much obsolete.
For hypoid gears, yes. That's why our rear ends call for a GL5.
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·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/525) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs · ZHP 13.7:1 P/S Rack
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Tue, Jul-11-2017, 03:38:48 PM   #25
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Default Re: What Transmission Fluid? Where to buy?

I have 22 bottles of Pentosin MTL2 en route to me
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Old Tue, Jul-11-2017, 03:59:32 PM   #26
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Default Re: What Transmission Fluid? Where to buy?

Quote:
Originally Posted by Speed Monkey View Post
I'm using Motul gearbox lube; it was suggested by the ECS rep. I used the factory fill for 10+ years except recently when ECS did not have the genuine BMW gearbox lube on the shelf.

About that Motul lube, it has made the shifting feel much more precise and weighty, surprising enough. The shift feel has never felt better, but I have to go through this awkward routine EVERY MORNING: slot into reverse to back out the driveway, and stop; while stopped, clutch in again and gently move the stick in and out of both 1st and 2nd gear. Slot it into 1st and move off slowly, then STOP; clutch in and again move the stick gently in both 1st and 2nd gear. Then and only then will 2nd gear slot in precisely with normal shift lever effort.

Since using Motul, that first shift into 2nd gear will not happen with normal lever effort after the M sits overnight. There is simply too much resistance so naturally I do not force the matter. Other than this strange ritual, the gearbox shifts beautifully and almost has a bit of that 1903 Springfield or Mauser rifle bolt precision feel, so to speak, like that in a S2000. I would not suggest using Motul in a SMG gearbox.
That sounds like a terrible routine.
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Old Tue, Jul-11-2017, 04:11:35 PM   #27
MrVond
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Default Re: What Transmission Fluid? Where to buy?

i just changed to ravenol mtf-2
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Old Tue, Jul-11-2017, 04:14:28 PM   #28
JaredMV
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Default Re: What Transmission Fluid? Where to buy?

I'm using Redline MTL 75w80 (GL-4) and I haven't had any issues so far. In fact, I'm due for an Inspection I soon so I'll be doing a tranny fluid change with more Redline MTL. It's about $17/qt from ECS.
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Old Tue, Jul-11-2017, 04:55:38 PM   #29
TboneM3
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Default Re: What Transmission Fluid? Where to buy?

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Originally Posted by MrVond View Post
i just changed to ravenol mtf-2
Ya I think this is our other option. It's the exact same spec as stock.

Here's a little more info:
https://www.bobistheoilguy.com/forum...Number=2987835
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/525) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs · ZHP 13.7:1 P/S Rack
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Wed, Jul-12-2017, 06:19:26 AM   #30
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Default Re: What Transmission Fluid? Where to buy?

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Originally Posted by TboneM3 View Post
^ There's literally no useful info from that video. No science, no details. IF we can find that their GL-5 doesn't have the common eps that are always found in GL5 gear lubes, then that's a start, but only half the equation. Does their GL5 lube contain the FMs found in GL4 lubes for proper synchro action?

I don't know, the CRP guy was condescending, but didn't give any real info.

What we do know, for a fact, is that our tranny calls for a 75w80 GL4 and our diff, a 75w140 GL5. Until I can find more info, I'll do my best to always use the right spec. At least I have 2L of new MTF2 which should last me for a long time, but still a shame that MTF2 has possibly been discontinued - do you have a link to where you got that info?
Agreed, the video is somewhat useless.

Here is a link to Pentosin's 2016 product sheet, which says MTF2 is to be discontinued. On ECS Tuning's website, it says it's discontinued. So anyone seeing it at various places is probably seeing existing inventory that will not be restocked.
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Discussing What Transmission Fluid? Where to buy? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)