MT oil & GEAR oil.
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I don't recommend Redline in Mazda transmissions. I use it religiously in my Honda and used it in my FD for a while. While it cuts down on the cold notchiness - I don't think it offers enough friction to the synchros when warmed up.
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mad_7: I have used both MTL and MT-90. Both had the same thing: Reduced cold notchiness BUT increased frequency of grinds when shifting fast. There's something about Redline that doesn't typically go well with the synchros in Mazda trans over the long-term.
The Vavoline gear/trans oil is simple and effective.
Like I said, I still use Redline in my Civic.
The Vavoline gear/trans oil is simple and effective.
Like I said, I still use Redline in my Civic.
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Originally posted by BRADYMAHONEY
So I should be OK if I go ahead and use Mobil 1 from auto zone?
So I should be OK if I go ahead and use Mobil 1 from auto zone?
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Originally posted by cpa7man
What Clayne was saying is that the synthetic gear lube (like MT-90, amsoil, others) provides too little friction for the syncros. They need some level of friction to operate properly. You will have the same issue with most of the 75-90w (GL-5)full synthetic gear lubes. Some people have experienced syncro problems with the GL-5 full synthetic gear lubes and some have not. IMO your better off running something not quite as slippery and changing it once a year. A GL-4 lube would be better suited for the mt application. I run amsoil 75-90w and have had no issues. I'm also fairly stock, reliability mods only.
What Clayne was saying is that the synthetic gear lube (like MT-90, amsoil, others) provides too little friction for the syncros. They need some level of friction to operate properly. You will have the same issue with most of the 75-90w (GL-5)full synthetic gear lubes. Some people have experienced syncro problems with the GL-5 full synthetic gear lubes and some have not. IMO your better off running something not quite as slippery and changing it once a year. A GL-4 lube would be better suited for the mt application. I run amsoil 75-90w and have had no issues. I'm also fairly stock, reliability mods only.
As a matter of fact, they do sucj a good job at it that it shifts so smooth........
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