What oil do you guys use in your tranny?
#6
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I have a question one of you guys may be able to answer real quick, and I'm too lazy to run out and sift through my owners manual.
Does the n/a FC tranny use GL4 or GL5 oil?
Does the n/a FC tranny use GL4 or GL5 oil?
#7
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Originally posted by Mykl
Does the n/a FC tranny use GL4 or GL5 oil?
Does the n/a FC tranny use GL4 or GL5 oil?
GL5 is straight gear oil and not recommended for transmissions with brass synchros.
See label on bottle for more details.
-Ted
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#8
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Originally posted by RETed
GL4 for transmissions.
GL5 is straight gear oil and not recommended for transmissions with brass synchros.
See label on bottle for more details.
-Ted
GL4 for transmissions.
GL5 is straight gear oil and not recommended for transmissions with brass synchros.
See label on bottle for more details.
-Ted
#9
Former Moderator. RIP Icemark.
Originally posted by Mykl
Okay, I don't have a bottle of Mobil 1 handy but I'm 95% sure that it's GL5.
Okay, I don't have a bottle of Mobil 1 handy but I'm 95% sure that it's GL5.
#10
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Originally posted by Icemark
Yep Mobile 1 75W90 is a GL5 oil... the high sulfur content is hard on the syncros.
Yep Mobile 1 75W90 is a GL5 oil... the high sulfur content is hard on the syncros.
#14
I just put Redline MT90 in the trans and Redline 75W90 in the diff. There is some improvement over the notchy shifting I had going into 3rd, but not as much as I had wanted.
#15
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Originally posted by Mykl
Will it actually damage them, or just cause them to not function properly?
Will it actually damage them, or just cause them to not function properly?
SOME GL5 rated gear oil is okay for transmissions.  This is why I recommend reading the bottle.
-Ted
#16
Rotary Freak
Any synthetic oil (unless specially formulated with friction modifiers such as Redline and Royal Purple products) are NOT good for manual trannies.
They are all just too slippery for the synchros, which is why people complain about gears grinding after they put in mobil 1 synthetic.
Get that synthetic out of there and get some Redline MTL, MT90 or the Automatic/Manual combination oil. Too little friction is very bad for manual transmissions.
They are all just too slippery for the synchros, which is why people complain about gears grinding after they put in mobil 1 synthetic.
Get that synthetic out of there and get some Redline MTL, MT90 or the Automatic/Manual combination oil. Too little friction is very bad for manual transmissions.
#17
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Originally posted by RETed
It will actually damage them.  Sulfur attacks brass.
SOME GL5 rated gear oil is okay for transmissions.  This is why I recommend reading the bottle.
-Ted
It will actually damage them.  Sulfur attacks brass.
SOME GL5 rated gear oil is okay for transmissions.  This is why I recommend reading the bottle.
-Ted
#21
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Gene,
Your "notchiness" may very well be due to worn out shifter bushings. Try replacing them and I bet you see an improvement. For $20 it's a pretty cheap bet.
hanman
Your "notchiness" may very well be due to worn out shifter bushings. Try replacing them and I bet you see an improvement. For $20 it's a pretty cheap bet.
hanman
#24
Information Regurgitator
Mobil 1 synthetic.I've had it in my transmission for three or four years now and it seems to do just fine.I may try Royal Purple or Neo Geo next time or I may stay with Mobil 1.
#25
Jesus is the Messiah
Yeh, I'm doing great with Mobil1 :O
Had it for about a year.
The FSM/Hayns/Whatever I was reading said GL4 or GL5 was fine.
Perhaps I should replace it with a GL4 sometime upon hearing this news though :O
Had it for about a year.
The FSM/Hayns/Whatever I was reading said GL4 or GL5 was fine.
Perhaps I should replace it with a GL4 sometime upon hearing this news though :O
Last edited by Tofuball; 06-15-04 at 07:11 AM.