Favorite Gear Oil For 6m

52172 · 11-10-2018, 08:09 PM

Thinking Redline MT-90 ?

52172 · 11-22-2018, 12:58 AM

Quote:

Originally Posted by 52172

Thinking Redline MT-90 ?

No ones changed their manual tranny oil? Hmmm

D041987 · 12-07-2018, 03:03 PM

Any 75w90 oil will be good. I have tried the Titan Fusch 75w90, OEM 75w90, and Redline mt-90. All have been good oils. My next will be to try the Lucas 75w90 as it is known to keep the temps lower and some guys I know that race cars on the track say average temps go down about 10 degrees or more...

My redline seems to have foamed a little after hard use... the other 2 not nearly as bad...

52172 · 12-07-2018, 03:14 PM

Thanks for your input. Fusch and oem foamed less than redline?

SteveInfante · 12-12-2018, 04:46 PM

I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that.

52172 · 12-14-2018, 07:22 PM

Quote:

Originally Posted by SteveInfante

I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that.

What's the difference between mt-90 and dt4?

SteveInfante · 12-14-2018, 08:32 PM

Quote:

Originally Posted by 52172

Quote:

Originally Posted by SteveInfante

I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that.

What's the difference between mt-90 and dt4?

DT4 is ATF. It was recommended to me by Chad Morehead from Morehead Speed Works. He's a major builder of Spec E46 cars for the racing series and local to me. That's what he uses in the race cars he builds. After I swapped it I immediately get the difference in shifting smoothness and it made the car fun to drive again. No more missed shifts or gating issues. I did the swap at around 60k miles.

52172 · 12-16-2018, 12:38 PM

Quote:

Originally Posted by SteveInfante

Quote:

Originally Posted by 52172

Quote:

Originally Posted by SteveInfante

I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that.

What's the difference between mt-90 and dt4?

DT4 is ATF. It was recommended to me by Chad Morehead from Morehead Speed Works. He's a major builder of Spec E46 cars for the racing series and local to me. That's what he uses in the race cars he builds. After I swapped it I immediately get the difference in shifting smoothness and it made the car fun to drive again. No more missed shifts or gating issues. I did the swap at around 60k miles.

Interesting! I may give it a try. Would it be ok to run for 80k miles or so?

SteveInfante · 12-16-2018, 02:50 PM

Quote:

Originally Posted by 52172

Quote:

Originally Posted by SteveInfante

Quote:

Originally Posted by 52172

Quote:

Originally Posted by SteveInfante

I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that.

What's the difference between mt-90 and dt4?

DT4 is ATF. It was recommended to me by Chad Morehead from Morehead Speed Works. He's a major builder of Spec E46 cars for the racing series and local to me. That's what he uses in the race cars he builds. After I swapped it I immediately get the difference in shifting smoothness and it made the car fun to drive again. No more missed shifts or gating issues. I did the swap at around 60k miles.

Interesting! I may give it a try. Would it be ok to run for 80k miles or so?

Being that it's pretty cheap I would run it for 30k changes. Cheap insurance per se'.

11-10-2018, 08:09 PM	#1
52172 Captain 157 Rep 928 Posts Drives: 2015 Bronze Metallic 335i Join Date: Aug 2018 Location: Buellton iTrader: (0)	Favorite Gear Oil For 6m Thinking Redline MT-90 ? __________________ 2015 335i 6sp manual with MPK and sport pack GPlus intercooler and CP. Stage 1. CG precision dp. Staggered 19?s. 275/35/19, 245/40/19 ps4s.
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12-07-2018, 03:03 PM	#3
D041987 Big Turbo Boys N Girls 327 Rep 579 Posts Drives: 2012 328I 6speed Join Date: Apr 2016 Location: Lynnwood, WA iTrader: (0)	Any 75w90 oil will be good. I have tried the Titan Fusch 75w90, OEM 75w90, and Redline mt-90. All have been good oils. My next will be to try the Lucas 75w90 as it is known to keep the temps lower and some guys I know that race cars on the track say average temps go down about 10 degrees or more... My redline seems to have foamed a little after hard use... the other 2 not nearly as bad... __________________ 2012 F30: G25-660 Bottom Mount Mani+ DP+ Intake, CSF FMIC, VRSF CP, Walbro 450 LPFP, PR Injection with AIC 4, S63TU Injectors, Tuned with BM3, ZF Race 4 Puck and Non SSA Pressure plate, Catless, 3.5" Quad Muffler, Custom Valved Bilstein B8 + H&R SS. Max 456 WHP - 452 WTRQ. Currently tuned down to 434 WHP and 362 WTRQ to save the rods.
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12-07-2018, 03:14 PM	#4
52172 Captain 157 Rep 928 Posts Drives: 2015 Bronze Metallic 335i Join Date: Aug 2018 Location: Buellton iTrader: (0)	Thanks for your input. Fusch and oem foamed less than redline?
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12-12-2018, 04:46 PM	#5
SteveInfante NewFinishColumbia/detailer 604 Rep 2,096 Posts Drives: 2015 F31 xDrive Join Date: Sep 2010 Location: Columbia, SC iTrader: (0)	I used RL DT4 in my 6MT 228 at 70k miles and it shifted smooth as butter after that. __________________ 328 F31 xDrive/OSM/Venetian Luxury Line/Cold Weather/Premium/Driving Assist/Nav/Tech "Golden Goose" 78' Honda CB400A project http://www.instagram.com/steve_inf31
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