swoope

iTrader: (5)

ok,
i am a diy kinda guy.

need to know which royal purple product to put into the rear diff. ?????

i have the 75-90 rp for the tranny in the mail.

beers

brillo

same one

bgreene

Be careful with that. The diff oil may have some things in it that are bad for the synchros in the MT.

I'm not sure how RP does their products, but I know that with RedLine, you can use the MT oil in the Diff, but not the other way around.

Try searching on synthetic gear oil (or something like that), there should be some older threads around with info about that.

swoope

iTrader: (5)

brillio,

i ended up canceling the order. the right choise is the max gear correct?????

beers

should be bottling this week.

beachdog

swoope, it's Redline MT-90 for the trans and Redline 75w90 for the differential. Dont forget your RX8M1016 differential crush washers and RX8M1017 transmission crush washers. Those are Rosenthals part numbers

The Mazda specs call for:
trans GL4 or 5 (75w90) ---the Redline MT-90 is actually a 75w90 GL4
diff GL5 (90) ---the Redline 75w90 is a GL5

So, you could use the Redline 75w90 GL5 in either the trans or diff but you can't use the MT90 in the diff.

I had a nice chat with Dave at Redline before I did this back in January.

Swoope, I have all the bottles, tubes, sockets etc if you want to borrow them.

swoope

iTrader: (5)

thx,

i want to use royal purple, but the answer is the same you can use the 75 90 in the trans. is what i am getting.

btw check went out yesterday. i leave for vacation sunday if i can afford it. fnig gas.

beers