GSL rear end fluid
06-02-03, 11:15 PM
#28
Kickin' a little asphalt
Join Date: Mar 2003
Location: Ontario, Canada
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I use Castrol Synthetic 75w90 gear oil with Ford friction modifier. Use this combination in both the tranny and diff. Transmission shifts like new and the Diff is quiet and there is no chatter. The car has 189,000km's and I have never had a problem using this combination in my car in the 10 years that I have owned it
06-02-03, 11:52 PM
#29
Full Member
Join Date: Oct 2001
Location: The South Bay and North OC
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Im with Northern 7 on this. Royal Purple works great. I have 75-90 in both the trans/diff of my SE. No more heat coming from the trans tunnel. "Feels" much better than Redline did although Redline is in the EP car we run. I noticed fuel mileage went up by .5 mpg and it just wanted to "go" easier on the RP.
11-18-03, 01:33 PM
#32
i say what i want
Join Date: Aug 2002
Location: richmond, va
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back from the dead.... 
where do yall find redline 75w-90? i cant find anyone who stocks it. ive been using moble 1 synthetic for the last 4 months, and my lsd is feeling like its not as good. a friend recommended redline, and after reading this thread, im sure thats the way i want to go, but i cant find it. any help?
where do yall find redline 75w-90? i cant find anyone who stocks it. ive been using moble 1 synthetic for the last 4 months, and my lsd is feeling like its not as good. a friend recommended redline, and after reading this thread, im sure thats the way i want to go, but i cant find it. any help?
11-18-03, 04:42 PM
#33
summit has it,
I found it local by asking around. It takes a bit of questioning, but I found it at a small race shop on the edge of town. Just ask around everywhere that they service cars and eventually someone will know where to find it.
It cost me 40 canadian pesos for 2qt, a little expensive, but that was after tax and it's well worth it.
Jon
I found it local by asking around. It takes a bit of questioning, but I found it at a small race shop on the edge of town. Just ask around everywhere that they service cars and eventually someone will know where to find it.
It cost me 40 canadian pesos for 2qt, a little expensive, but that was after tax and it's well worth it.
Jon
11-18-03, 10:58 PM
#35
FD > FB > FC
Originally posted by peejay
I know someone who uses regular ol' automatic transmission fluid in his transmissions and rearends. Puts some extreme pressure additive in the rearend for good luck, but that's about it. If you think about it, auto trannies operate under much worse conditions than manuals. Autos have splash lubrication (the pressure is only for the hydraulic controls) but they have much smaller gears/bearings and even worse they are usually encased in drums. Manual trannies/rearends are cake to lube by comparison.
I know someone who uses regular ol' automatic transmission fluid in his transmissions and rearends. Puts some extreme pressure additive in the rearend for good luck, but that's about it. If you think about it, auto trannies operate under much worse conditions than manuals. Autos have splash lubrication (the pressure is only for the hydraulic controls) but they have much smaller gears/bearings and even worse they are usually encased in drums. Manual trannies/rearends are cake to lube by comparison.
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