Anyone use a non OEM tranny or diff fluid?

MMMorish · 05-22-2012, 04:08 PM

My car is out of warranty now so I'm wondering if I should use OEM or aftermarket (Royal Purple, ect..) type oils. Anyone have any experience with aftermarket fluids? Are there any pros or cons to not using OEM? Should I use OEM?

Thanks,
Nick

m3an · 05-23-2012, 01:05 AM

i have used Royal Purple with good results

tibra1 · 05-23-2012, 01:11 AM

Use OEM

robbiedawg · 05-23-2012, 08:09 PM

Quote:

Originally Posted by tibra1

Use OEM

why is it better?

tibra1 · 05-23-2012, 08:12 PM

Quote:

Originally Posted by robbiedawg

why is it better?

The better question is why would you use anything other than OEM?

robbiedawg · 05-23-2012, 08:27 PM

Quote:

Originally Posted by tibra1

The better question is why would you use anything other than OEM?

good question- i generally believe that oem stuff is best for a car that's been this carefully designed.however,sometimes there's something better.i wouldn't use anything else without checking carefully and getting a high comfort level.i'm new to the car,so was just wondering since i'll also be off warranty soon.
what got me thinking about it is that in my nsx,my mechanic (an nsx specialist who worked for acura for many years,had special nsx training from them, and who works on a number of nsx's now on a regular basis) recommends gm syncromesh for the mtl,and the car shifts beautifully.

tibra1 · 05-23-2012, 08:35 PM

Quote:

Originally Posted by robbiedawg

good question- i generally believe that oem stuff is best for a car that's been this carefully designed.however,sometimes there's something better.i wouldn't use anything else without checking carefully and getting a high comfort level.i'm new to the car,so was just wondering since i'll also be off warranty soon.
what got me thinking about it is that in my nsx,my mechanic (an nsx specialist who worked for acura for many years,had special nsx training from them, and who works on a number of nsx's now on a regular basis) recommends gm syncromesh for the mtl,and the car shifts beautifully.

The only aftermarket fluid I use is brake fluid as its better to use higher temp fluids for that because it resists degreadation better..but when it comes to trannys and diffs unless you are running after market units its best to stick to OEM as it maybe more susceptible to differences in viscosity and additives no matter how slight..and I just dont see the need to go aftermarket on this

robbiedawg · 05-23-2012, 09:03 PM

that makes sense,and i'll stick w/oem,just good to know if there's a consensus among knowledgeable owners for something different.

LateBraking · 05-24-2012, 12:34 AM

I know of a number of people who use non-OEM fluids in their engine, transmission, differential, and brake systems with no complications whatsoever. In fact, a few reported improved results with their manual transmissions when they switched fluids, which is something that can readily be felt. A friend of mine has had oil analysis done to his oils both OEM and aftermarket, and tells me that his reports show marked improvement on the non-OEM fluids. Just food for thought, though I personally don't blame anyone for wanting to stick with OEM fluids, peace of mind is invaluable.

05-22-2012, 04:08 PM	#1
MMMorish Just call me J.J. McClure Drives: E92 M3 & C4 Corvette Join Date: Sep 2008 Location: Toronto Posts: 2,838 iTrader: (5)	Anyone use a non OEM tranny or diff fluid? My car is out of warranty now so I'm wondering if I should use OEM or aftermarket (Royal Purple, ect..) type oils. Anyone have any experience with aftermarket fluids? Are there any pros or cons to not using OEM? Should I use OEM? Thanks, Nick __________________ MODS: Meisterschaft GT Racing Exhaust / BMC Air Filter / UUC SSK & DSSR (Modded)/ RPI Scoops / Passport SRX Hardwired / Custom Wrap 3M Clearbra / 20% Tint / 50% Windshield Tint / Key Hole Delete / Matted Out Accessories / VRS Type II Diffuser / Smoked Reflectors / Euphoria 6K LED Interior Lights / Rear Fog Light Mod / 6000K HID's / 6500K LUX H8 Angel Eyes / RDash License Plate LED Kit / LED Xenon Reverse Lights "M3 drivers have no friends"
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05-23-2012, 09:03 PM	#8
robbiedawg First Lieutenant Drives: 2008 ib e90 m3, 1995 acura nsx Join Date: Jan 2012 Location: chapel hill, nc Posts: 362 iTrader: (0) Garage List 2008 BMW M3 [0.00] 1995 ACURA NSX-T [0.00]	that makes sense,and i'll stick w/oem,just good to know if there's a consensus among knowledgeable owners for something different. __________________ ~ TRAFFIC LAWYER IN CENTRAL NC ~ 2OO8 E90 M3 /// INTERLAGOS BLUE w/BAMBOO BEIGE, CARBON LEATHER / 6MT / 19" 220M FORGED WHEELS / PREMIUM / MOONROOF / IPOD / BSW SPEAKERS ~EVERYTHING IN MODERATION,INCLUDING MODERATION ~

05-24-2012, 12:34 AM	#9
LateBraking Brigadier General Drives: Reliable Cars Join Date: Sep 2008 Location: Pacific Standard Time Posts: 3,877 iTrader: (27)	I know of a number of people who use non-OEM fluids in their engine, transmission, differential, and brake systems with no complications whatsoever. In fact, a few reported improved results with their manual transmissions when they switched fluids, which is something that can readily be felt. A friend of mine has had oil analysis done to his oils both OEM and aftermarket, and tells me that his reports show marked improvement on the non-OEM fluids. Just food for thought, though I personally don't blame anyone for wanting to stick with OEM fluids, peace of mind is invaluable. __________________

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05-23-2012, 01:05 AM	#2
m3an Banned Drives: M3 Join Date: Oct 2010 Location: South Florida Posts: 1,612 iTrader: (2)	i have used Royal Purple with good results

05-23-2012, 01:11 AM	#3
tibra1 Banned Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC Posts: 6,779 iTrader: (4)	Use OEM