I am putting in new syn gear oil for my trans and was wondering if there is a type not to use. I thought I remember someone saying not a use a certin type becuase I is harmful to the bearings or something in our trans. That doesnt really make sense but I guess better safe than sorry. Maybe I am way off in this question, so let me know.

Thanks

 

There are only three types to use. As always foloow the manufacture's recomendations for viscosity.
Mobile 1 best for the buck and similar in performance to the ones listed below
Redline a little better protection and friction control but nearly twice as expensive
Amsoil nearly double the protection and friction control as Mobile 1 but it is hard to find and about $9 a quart last i checked.
I use the Mobile 1 with great results. found nearly everywhere, and they offer the recommended weight.

 

I use Redline MT90.

 

Mazda recommends 75W90 oil - use at least that particular viscosity.



-Ted

 

i put gm synchromesh in my tranny and ive used royal purple before, and this stuff it totally amazing

 

If you can find it, look at the Synergyn lube. It really isn't that expensive and is distributed by Dyson. As I remember, his cars seem to do pretty well.

db

The website is www.synergynracing.com

 

I use Amsoil everywhere in my car and to me its money well spent.

 

is neo synthtis any good because that is what i am going to be using