2017 Hyundai Tucson DCT substitute fluid

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Good day everyone!

I'm a car maintenance crazy person! I typically dump factory fluids and replace with synthetics. However, Hyundai recommends straight 70w GL-4 DCT fluid. I want to use a synthetic alternative but I haven't been able to find a synthetic single weight oil. Any suggestions for a synthetic alternative?
 
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I checked out both of those oils and neither states a weight (70w is Hyundai recommended). Without an advertised weight I'm hesitant to use those.
 
Why mess with the transmission fluid before the recommended intervals? You already have a somewhat problematic transmission. Do the recommended scheduled maintenance and use only Hyundai OE fluid.
 
Originally Posted By: RamAir5
I checked out both of those oils and neither states a weight (70w is Hyundai recommended). Without an advertised weight I'm hesitant to use those.


Viscosity for the Amalie DCT is 7.2 cst, which is in line with 70W
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Originally Posted By: slacktide_bitog
Originally Posted By: RamAir5
I checked out both of those oils and neither states a weight (70w is Hyundai recommended). Without an advertised weight I'm hesitant to use those.


Viscosity for the Amalie DCT is 7.2 cst, which is in line with 70W
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Awesome! Thanks for the info.
 
Hyundai routinely sends out fluid samples. If you value your warranty use OEM fluid only for the 10year 100k warranty.
 
Originally Posted By: RamAir5
I checked out both of those oils and neither states a weight (70w is Hyundai recommended). Without an advertised weight I'm hesitant to use those.


They are not weights.

The SAE sorts the viscosities according to GRADE classifications.

The major/important Specification for MT's is the viscosity (in cSt) at a temperature of 100C.


https://bobistheoilguy.com/viscosity-charts/
 
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Originally Posted By: Rand
Hyundai routinely sends out fluid samples. If you value your warranty use OEM fluid only for the 10year 100k warranty.


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In order for Hyundai to determine if the fluid is really their's they would have to send the sample to a special commercial lab or an academic institution at a minimum cost of $800.00.

A $28.00 Blackstone analysis cannot be used to deny a warranty, nor does it represent sufficient factual info for a court case.

Been there, done that!
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