N54Tech.com - International Turbo Racing Discussion
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BMW135xi BMW135xi is offline
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Default AT best Tranny Fluid - 07-04-2018, 11:59 AM

Is Pentozin AF1 good for the AT tranny oil change?
I know PD recommends it a lot.
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erichale erichale is offline
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Default 07-04-2018, 05:24 PM

That's what I run. Trany holding fine with my HP turned down to 850WHP


07 335i AT/CUSTOM 6870 GEN2 ST/VAC ENGINE AND STAGE 3 HEAD/FABFACTORY INTAKE W/PI/1000HP AD FMIC/FUEL IT STAGE 3 LPFP/HKS BOV/BL COILS/DUAL OIL COOLERS/RB EXTERNAL PCV/PD TRANY W COOLER/M3 FRONT N REAR SUSPENSION W/ROUGE BEARINGS/HOTCHKIS ADJUSTABLE END LINKS/ADUSTABLE REAR TOE ARMS AND CAMBER LINKS/EIBACH SWAYBARS/BC RACING BR COILOVERS AND CAMBER PLATES/AKG REAR SUBFRAME, DIFF, REAR SHOCK BUSHINGS/POWER FLEX BUSHINGS/WAVETRAC REAR DIFF WITH DEFIV BRACE AND VAC COVER/4IN EXHAUST
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N54QC N54QC is offline
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Default 07-04-2018, 07:20 PM

I believe if you look at the actual specs on Pentozin ATF1, it says it's not compatible with our trans but ok for the older ZF transmissions. That being said, I'm been running it for the last 20k with good success.


VTT Stage 2+ | JB4 G5 w/ Trebila BEF | Fuel-It Stage 3 | XHP Stage 3 | BL Coils | VTT Inlets | MMP Outlets | BMS Meth Dual 10/5CM | VRSF 7" FMIC | VRSF **'s | BMS CP | BMS DCI | Turbosmart Dual Port | 3.5 TMAP | BMS OCC | VTT PVC | BMS Anti-Lag | NGK 5992 | M3 Rear Upper Controls And Godspeed TB's | Lock-Down Brace | 235/285-18 PSS
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hardparker hardparker is offline
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Default 07-04-2018, 08:27 PM

I've always liked Redline products. I run D6 in my 8HP. More important for longevity of the fluid and trans is a good cooler to keep temps down to 220* or lower.


F25 X3 35i M Sport | Pure Stage 2 turbo + inlet | UR de-catted thingy | VRSF Race IC | FTP full thingies | BM3 PTF tuned | XDI-35 HPFP | Stage 2 LPFP | Ethanol mixed | WMI | Oil cooler | xHP | 50iX brakes
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cebrailbakan cebrailbakan is offline
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Default 07-05-2018, 04:35 PM

I am running Torco DCT in my 6hp26 , surprisingly it holds great ! Surprised because it is for dual clutch transmission I just tried my chance and got success


Bmw E90 2007 AT 335xi MSD80,Jb4 G5 ISO,
Full Bolt Ons, Ps2 turbos, TFT inlet system,xHP Stage 3

Do more with less !
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BMW135xi BMW135xi is offline
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Default 07-06-2018, 07:59 AM

Thanks for the comments , I will try Pentozin ATF1 in my AT tranny.
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soccerman1bmw soccerman1bmw is offline
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Default 07-12-2018, 06:27 PM

Nice Erichale how long have you been pushing high hp on the auto? Just wondering because there’s so much talk that they can’t handle it
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THE BEAST THE BEAST is offline
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Default 07-13-2018, 11:18 AM

Why dont people use the ZF trans fluid since its a ZF trans ? I used it in mine after dropping the valvebody twice. 1st time pentosin, 2nd time ZF. Trans is still strong so far.
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