Whats the best tranmission fluid?
09-07-2010, 08:23 PM
#1
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Whats the best tranmission fluid?
my transmission hasn't been shifting smoothly lately and i don't know if the pervious owner ever changed the tranmission fluid.
i was just wondering what tranmission fluid do you all recommend?
i have heard good things about red line but then i have also heard bad things like synthetic transmission fluid is bad for the internal parts of the transmission. which do you all recommend.
i was just wondering what tranmission fluid do you all recommend?
i have heard good things about red line but then i have also heard bad things like synthetic transmission fluid is bad for the internal parts of the transmission. which do you all recommend.
09-07-2010, 10:07 PM
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Read this: https://www.rx8club.com/series-i-tech-garage-22/change-tranny-oil-19006/
I changed mine to RedLine MT90 for tranny and 75W90 for rear diff about 100 miles ago. I hope it's good stuff but I did not notice any difference from before and after like others are saying.
As far as GL4 vs GL5 I am no expert but I think GL4 lacks Sulfur that might damage synchro. Here is a qoute from the RedLine website on MT90: "Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage"
While you are changing that change the rear diff too. On my car the rear diff was much more dirtier than tranny.
I changed mine to RedLine MT90 for tranny and 75W90 for rear diff about 100 miles ago. I hope it's good stuff but I did not notice any difference from before and after like others are saying.
As far as GL4 vs GL5 I am no expert but I think GL4 lacks Sulfur that might damage synchro. Here is a qoute from the RedLine website on MT90: "Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage"
While you are changing that change the rear diff too. On my car the rear diff was much more dirtier than tranny.
09-08-2010, 09:14 AM
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Im no expert ether but I have used Royal Purple’s Synchromax, RedLine MT90 and Eneos 75w-90 transmission fluids, and the one I like is Eneos.
Here is BHR's Blackstone Oil Test of Eneos 75w-90 Transmission Oil
http://blackhaloracing.com/technical...abs-eneos-uoa/
Here is BHR's Blackstone Oil Test of Eneos 75w-90 Transmission Oil
http://blackhaloracing.com/technical...abs-eneos-uoa/
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