This is why no one should use GL-5 in our transmissions
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The following 2 users liked this post by Staged07SS:
footballplaya3k (08-19-2015),
Viperoni (08-19-2015)
08-19-2015, 09:38 AM
#4
Senior Member
iTrader: (6)
Actually thats not too crazy, you have gears wearing on each other made of magnetic iron. What you don't see is the brass that is being eaten by the GL/5 since brass is non-magnetic it won't show up on that plug
The following 4 users liked this post by ECaulk:
08-19-2015, 11:56 AM
#7
Senior Member
iTrader: (6)
It's honestly normal if the shavings are fine, if you have large pieces (1/8" or 3mm) then be concerned. If you look at how the gears are designed you'll see there will be some metal wear due to the surface interaction. I think Blackstone does a transmission oil analysis which should tell you Cu and Zn (for those that don't know those elements make the brass alloy) which would be the best indication.
08-19-2015, 02:18 PM
#8
This is why no one should use GL-5 in our transmissions
It's the copper from analysis. Ecaulk posted a link in a thread I have and it says GL-5 comes up with twice the amount of copper(I believe it's copper) but pretty much the point is that GL-5 will wear out your synchros twice as fast.
08-20-2015, 01:14 AM
#10
i just dont understand why everyone feels the need to screw with transmission fluids. i was a transmission tech for 10 years, built manuals for about 7 years of that, and i saw so many problems from people running the wrong fluids. the engineers that design the transmissions are pretty dam smart, they engineer the transmission and the recommended fluid to work together.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
08-20-2015, 01:54 AM
#11
This is why no one should use GL-5 in our transmissions
Originally Posted by Sharkey
i just dont understand why everyone feels the need to screw with transmission fluids. i was a transmission tech for 10 years, built manuals for about 7 years of that, and i saw so many problems from people running the wrong fluids. the engineers that design the transmissions are pretty dam smart, they engineer the transmission and the recommended fluid to work together.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
08-20-2015, 07:12 AM
#12
i just dont understand why everyone feels the need to screw with transmission fluids. i was a transmission tech for 10 years, built manuals for about 7 years of that, and i saw so many problems from people running the wrong fluids. the engineers that design the transmissions are pretty dam smart, they engineer the transmission and the recommended fluid to work together.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
imo, something that requires a specific fluid, like the f35 does, best to get the gm oil. something that specifies dex 3 atf, go nuts with whatever synthetic fluid that meets the requirements of dex 3. same goes with 80-90 gl4, go nuts.
Problem with most on here is they feel if it is factory or stock, it isn't good....
No way in hell would I run anything other than the fluid I listed a few posts up.
true true
08-22-2015, 11:39 PM
#15
Also if you read the bottle of the GM fluid it says its made in Germany, cant be the worst stuff in the world haha.
but seriously, once i changed my tranny fluid with the OEM stuff (dont know what was in it before i owned the car) the transmission felt SOOOOOOO much better, and for what like 30 bucks more than if i where to gamble on a random aftermarket fluid
but seriously, once i changed my tranny fluid with the OEM stuff (dont know what was in it before i owned the car) the transmission felt SOOOOOOO much better, and for what like 30 bucks more than if i where to gamble on a random aftermarket fluid
08-23-2015, 08:32 AM
#16
I never could see a point in running anything else other than what is recommended. That's why I don't see why people use anything but mobil 1 in these cars too. Same with the trans
08-23-2015, 09:20 PM
#17
This is why no one should use GL-5 in our transmissions
The shop that installed my LDK (and put new trans fluid in) were the ones who put the GL-5 in. They said they called a local GM dealer and that's what they said to use because they didn't have any of the stock fluid.
My local deals are very dumb. I called them and asked if they had the stock fluid in stock for my 08 Cobalt SS and the tech tried telling me my car only came in automatic.
My local deals are very dumb. I called them and asked if they had the stock fluid in stock for my 08 Cobalt SS and the tech tried telling me my car only came in automatic.
08-23-2015, 10:46 PM
#18
if you were trying to get fluid you were likely talking to a parts guy, most of them dont know jack. dealerships arent the be all end all info source, they have all the info, most of the parts guys dont use it. they figure if the bottle says 75-85 it must just be gear oil, so put gl5 in, must be the same difference.
08-24-2015, 09:29 AM
#20
if you were trying to get fluid you were likely talking to a parts guy, most of them dont know jack. dealerships arent the be all end all info source, they have all the info, most of the parts guys dont use it. they figure if the bottle says 75-85 it must just be gear oil, so put gl5 in, must be the same difference.
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