Transmission noise after fluid change
03-10-2013, 03:40 PM
#1
Transmission noise after fluid change I changed the fluid in my trans today and used Mobil 1 atf. It appeared to have the original fluid in it as it was really thin(almost like water) and dark. My V has 54k on it. It is making a really load wining noise coming from the trans. Could it be from the thicker oil? Will it quiet down once it heats up?
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03-11-2013, 02:02 AM
#8
OP if your fluid was burnt it's likely you have some damage internally that will have to be addressed. Do you have any symptoms like popping out of gear, hard shifting, grinding?
03-11-2013, 04:53 AM
#9
Cmon man dont put out bad info on this site. Mobil 1 is the choice by MANY top shops and trans builders across the country.
OP if your fluid was burnt it's likely you have some damage internally that will have to be addressed. Do you have any symptoms like popping out of gear, hard shifting, grinding?
OP if your fluid was burnt it's likely you have some damage internally that will have to be addressed. Do you have any symptoms like popping out of gear, hard shifting, grinding?
Consider the evidence: guy takes dirty, Dextron III oil out of a T56 transmission that is working properly and replaces it with Mobil 1 ATF, which is known to be too thin to permit proper operation of T56 synchros and bearings. Immediately notices whining sounds. How do you NOT diagnose that as an oil misapplication?
Popping out of gear and grinding (actually, crunching) are two different symptoms that would not be affected by oil, period. Not having the right fluid viscosity would definitely affect synchro performance and make it harder than usual to shift.
Last edited by FuzzyLog1c; 03-11-2013 at 05:00 AM.
03-11-2013, 08:25 AM
#11
Mobil 1 Synthetic ATF meets the last, and toughest, Dexron III(H) specification, which is the same specifcation for which Tremec designed the early (2004-2005 at least) T-56s.
Mobil 1 also makes an ATF for the newer Dexron VI specification, which involves a lower viscosity (thinner). At some point, Tremec began producing T-56s designed for this specification. I don't know if any Dexron VI Tremecs are in CTS-Vs, but if that were the case it would show up in the Owner's Manual under recommended lubricants.
Mobil 1 also makes an ATF for the newer Dexron VI specification, which involves a lower viscosity (thinner). At some point, Tremec began producing T-56s designed for this specification. I don't know if any Dexron VI Tremecs are in CTS-Vs, but if that were the case it would show up in the Owner's Manual under recommended lubricants.
03-11-2013, 07:08 PM
#18
I'm dying to disassemble my transmission and see how much metal is stuck to the big doughnut magnets in the bottom. Still debating between doing a group buy on the T56 rebuild ($950) or a group buy on the TR6060 upgrade ($2800). Any thoughts?
03-11-2013, 07:49 PM
#19
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I drained the factory fill and put in M1 syn ATF. shifts so much better, noticed on the first shift.
Per M1, its been tested and recommended: http://www.mobiloil.com/USA-English/...etic_ATF.aspx# Check the specs / apps.
Per M1, its been tested and recommended: http://www.mobiloil.com/USA-English/...etic_ATF.aspx# Check the specs / apps.
