Transmission/Diff fluid
03-17-2007, 01:54 PM
#1
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Transmission/Diff fluid
I was wondering what fluid you guys are running in the Tranny/Diff for the track (20-30minute sessions). I searched and saw some people recommended adding some Pro Blends ATF additive to the fluid which I think I will do, but not what fluid they were running.
03-17-2007, 07:44 PM
#3
Drifting
I run Amsoil ATF for the transmission. Diff fluid is Amsoil severe gear oil. 75/90, as I recall. Too lazy to go out to the garage, sorry 
No troubles so far. The Amsoil diff product doesn't require limited slip additive, but check around before you pick a fluid. Some do some don't.
No troubles so far. The Amsoil diff product doesn't require limited slip additive, but check around before you pick a fluid. Some do some don't.
03-18-2007, 07:54 PM
#4
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Well, I have moble atf and royal purple in diff. My first transmission went bad at moroso, I think Seabring was the start of it (overheated it). I recommend getting a transmission cooler/diff. cooler and a temp. gauge. Also, before each event, its wise to replace your fluids in transmission (like your engine). Extra protection.
Well, thats my 2cents.
Well, thats my 2cents.
03-18-2007, 09:42 PM
#5
Melting Slicks
Use a good synthetic and good brake fluid. Popular fluids are Mobil 1, Royal Purple, Red Line, Amsoil. You choose.
I run Royal Purple synthetic fluids end to end. Their synthetic PS fluid. Which does not foam and works well. Their 5w-30 oil, Synchromax in the trans and Max Gear in the diff. I change my engine oil based on the DIC reading. Trans fluid after 3-4 events and diff fluid after 6-8 events. Depends on the time of year I run and which club I run with. Some clubs give you much more seat time so I do it based on miles/hours of run time.
Motul brake fluid. Flush once a year. Bleed off some after each event. Also change the clutch fluid before every event (including cleaning the bottom of the reservoir).
YMMV...
I run Royal Purple synthetic fluids end to end. Their synthetic PS fluid. Which does not foam and works well. Their 5w-30 oil, Synchromax in the trans and Max Gear in the diff. I change my engine oil based on the DIC reading. Trans fluid after 3-4 events and diff fluid after 6-8 events. Depends on the time of year I run and which club I run with. Some clubs give you much more seat time so I do it based on miles/hours of run time.
Motul brake fluid. Flush once a year. Bleed off some after each event. Also change the clutch fluid before every event (including cleaning the bottom of the reservoir).
YMMV...
03-18-2007, 11:28 PM
#6
Go big or don't go...
I work with LG Motorsports on keeping my car running. So far so good, I use Redline oils in the car.
Castrol SRF for the brakes.
I changed the tranny and diff oils last year about this time, so far so good. Haven't changed it and won't till Ant or Louis tell me I should...
JK
Castrol SRF for the brakes.
I changed the tranny and diff oils last year about this time, so far so good. Haven't changed it and won't till Ant or Louis tell me I should...
JK
03-19-2007, 11:46 AM
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Yes my car is a 99 frc and I read an article that said that a synthetic would degrade the paper rings prematurely. Are there any organic transmission fluids that are better than what Gm recommends? Can I or should I still run a synthetic in the diff for a 99 frc.
thanks for the help.
thanks for the help.