FULL Fluid change any recommendations?
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 927
Likes: 5
From: Bay Area, DubCity Ca
FULL Fluid change any recommendations?
Hello all I am changing ALL my fluids, I will stick with the mobile one in the engine (Unless otherwise recommended, I read Amsol or royal purple). What is the recommendation for tranny and rearend? Radiator will get water wetter and prestone/dexcool fluid, Brakes get motul 600. Any recommendations WILL be appreciated.
Thanks in advance,
Sam
Thanks in advance,
Sam
Melting Slicks
Joined: Aug 2005
Posts: 2,995
Likes: 61
From: Fort Wayne IN
IMHO the water wetter won't cool any better than regular dexcool and distilled water (distilled water helps to prevent corrosion). For the brake fluid I used Valvoline synthetic Dot 3/4. 
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
Mobil1 is fine for the engine... I ran that until I switched to Pennzoil Platinum. Based on my analysis of available data, I can't justify anythiing more exotic.
Mobil 1 or any synthetic Dexron III for the manual gear box Royal Purple ATF or Synchromax is alos fine for the manual tranny.
Mobil 1 or other similar 75W90 gearoil for the rear diff. Add to it 4oz of GM or aftermarket limited slip differential additive.
Mobil 1 or any synthetic Dexron III for the manual gear box Royal Purple ATF or Synchromax is alos fine for the manual tranny.
Mobil 1 or other similar 75W90 gearoil for the rear diff. Add to it 4oz of GM or aftermarket limited slip differential additive.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I am running German Castrol in the motor (all my cars actually) and Amsoil in the tranny and rear. However, with the DTE unit that is going in this spring the fluid requirements are very specific and only Redline 75W-140 can be used with additional limited slip lubricant to keep the warrantee. This is not a stock unit though and the clutch packs are different. I have had good luck with the Amsoil I have been running in the tranny and rear to date. If the rear fluid you select already has the limited slip additive (Amsoil, Redline, etc.) don't add more unless it chatters, otherwise you degrade or possibly eliminate the limited slip capability. As for the German Castrol, I have gotten the best oil analyses with this oil and am sticking with it unless I can't get it. Its about the same prices as Mobil-1.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
The tranny is Dextron auto fluid and the rear is 75W-90 for a stock setup. I have been reading a lot of stuff on the Mustang forums, a lot of those guys seem to like the GM synchromesh fluid for the tranny.
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