Tirxer

so for the gear oils, can the 75w90 GL class be used in both differentials.. meaning for auto and man trannys??

Gord96BRG

Yes, the 75W90 GL-5 is used in the differential on both the MT and AT cars.

The manual transmission itself uses the GL-4 75W90 like Redline MT90; the automatic transmission would blow up if you used regular gear lube in it!

Regards,
Gordon

Rx8Freehk

***Bumb***
HIGHLY RECOGMENDED:

Just for those of you that havnt done this.... I just did it this weekend (5061 miles) and OMG!!! So much crap was on the drain plug, took me a good 10 min to clean them. I couldnt get ahold of any Redline, but I got ahold of the German Equivalent, Moly-... Something or other. Was refered to it by others as the best...... At 11.30 Euro a liter, It BETTER be.

Oh and for those of us that have to buy by the liter, 3 isnt enough!! get 4!!

rx8cited

What size sockets are needed to replace the manual transmission oil and differential fluid please?

I'm planning to Red Line my manual transmission and differential. I'll have access to a service bay, but need to bring my own tools and won't be able to get under my car until then.

Torque specs:
Manual Transmission filler/drain bolts: 27-48 N.m
Differential filler/drain bolts:
39.2-53.9 N.m

FYI - The Red Line Oil website is http://www.redlineoil.com . No biggie, but they spell it Red Line vs Redline .... made searching for this thread a bit challenging since it's spelled differently.

rx8cited

Genom

Just ebfore I go and buy the oil, any words against Royal purple vs Redline? It's easier for me to lay hands on the purple stuff is all.

rx8cited

Part # for:
Transmission filler/drain plug crush washers - Y601-17-361 (oddly, description in Mazda parts system is "Tape, Protector")

Differential filler/drain plug crush washers - 9956-41-800

Both sets were identical in size except for the fact the the transmission washers were a bit thicker.

rx8cited

rx8cited

Red Lined my transmission and differential last night. Initial impression is that shifting feels a bit smoother.

A 24 mm socket is required for differential drain and manual transmission drain / filler bolts. A 23 mm socket is required for differential filler bolt (Note: 23 mm is not a common size and a 23 mm deep socket will not work - there's not enough clearance).

See jdl's most excellent pictures and information .

rx8cited

Genom

Did you guys buy the crush washers locally or online somepalce?

rx8cited

I got mine locally at a Mazda dealer. They did not have transmission washers in stock Monday and told me there were only 6 washers available in the whole country. He had two for me by Wednesday morning.

rx8cited

rxeightr

I also ordered mine through my Mazda dealer last week.

Have been out of town, so I have not used the Redline bought through Rosenthal Mazda online.

flatso

Hi nothing in life is simple when I went to order I noticed there is more then on Red Line diff oil. 75w90ns(a synthetic) and regular 75w90 which one did you use?

Also because the 75w90ns is a GL-5 could you use that for the transmission too. Below is from Red Lines Site:

"TRANSMISSIONS - MTL® can be used in most manual transmissions and transaxles for both street and racing use unless the manufacturer requires the additional protection of an SAE 90 or the extreme-pressure protection of a GL-5. In those situations the MT 90 (GL-4) or 75W90NS (GL-5) will provide good shiftability and synchro compatibility and extra gear protection."

rx8cited

Use MT-90 for the manual transmission and 75W90 (which is also synthetic) for the rear differential.

rx8cited

jdl

FWIW, I queried Red Line Oil's tech staff on the question of which gear oil (75w90 or 75w90NS, or ?) is recommended for TORSEN-type diffs. The reply is from Dave Granquist at Red Line Oil:

Hope that clears things up a bit.
Cheers,
-jd.

rx8cited

Thanks to everyone that contributed to this thread.

Over a week later ......... Wow :D, the transmission is noticeably smoother since putting Red Line MT-90 in. It's the best thing that ever happened to my car (she's still young).

I'd highly recommend doing the the Red Line transmission oil / differential lube procedure if you feel that you're transmission's a bit too notchy.

How many mile do you folks plan on driving before repeating this procedure? The Severe / Normal Service Schedule recommends 30k / 60 k miles for transmission and differential fluid replacement.

rx8cited

WTF no turbo

Yea ive changed tran oil along with the tranny

flatso

Do they sell Red Line Products in any stores (I live in NJ) or if not where is they best place to buy?

rx8cited

My experience is that you won't find their products in just any store. If you have any local performance parts places around, call them. Also check the Red Line dealer list and call their phone # at the top of that page if you don't see anything listed that's close to you.

Rosenthal Mazda sells Red Line products too.

rx8cited

flatso

do you really need a 23mm wrench..those are hard to find

rx8cited

Flatso,

You said "23mm wrench", I assume you meant "23mm socket ". You do plan on using a torque wrench I hope? in which case you'd need a socket.

For the rear differential drain plug: a 24mm socket fits loose, 22mm does not fit, 23mm fits the best, and 23mm deep won't fit.

The 24mm socket - it's only 4.3% larger than 23mm, but I did not want to risk damaging the plug.

Did you check your local Sears and auto parts stores for a 23mm socket? I recently purchased a Craftsman set that goes up to 24mm and includes the difficult to find 23mm socket.

Also, if you don't have a torque wrench, they're on sale at Sears thru 3/27.

rx8cited

romulus

Here my experience with the tranny oil change.

1. I had the right equipment, including a lift at work that made the process smother.

2. Both tranny and diff oil were really dark and cleaning the micro metal shaves from the lower plugs turned to be just a bit of effort since is magnetized.

3. Red oil works like a charm. I can feel my shifting even smother.

4. I tryed to use the "hose and funnel" method but it turned out to be a bit of pain in butt since the oil didn't wanted to flow. Luckly, before the service mechanic was gone for the day showed me where was his gear oil pump so I just have to incert the pick up hose to the bottle and pump the oil. Yeah its a bit messy but I also have those adjustable height oil pan to catch any spills.

Gord96BRG

I didn't have that problem, but here's a trick that would have helped - heat up the bottle of gear oil first. Get a pan/pot of hot water, and let the gear oil bottle sit in the hot water for a while. That would heat up the oil enough to let it flow much easier.

Regards,
Gordon

flatso

does anyone have a pic of the pump that you can use?

rx8cited

flatso,
I did not use a pump ....... if this help: This on/off fluid tool did the trick for me. I bought mine at Advance Auto Parts for less than $5 and I've also seen them at Pep Boys. The one's I've seen have yellow plastic in place of the red plastic as pictured in the link, but the part # is the same - Flotool #10106.

Since the Red Line oil bottles don't have a standard quart sized opening, the don't fit the on/off fluid filler tool, so I had to find something that did fit ....... a 20 oz plastic Dr. Pepper bottle worked great - any similar clear drink bottle should work.

Wash, rinse, and dry out the bottle first. Try the tool on the bottle for good fit before putting oil into the bottle .

Pull the stopper gadget completely off the filler tool tube so that the tube will fit into the oil filler holes snugly.

When you're ready to add oil:

1) Turn the filler tool off.
2) Fill up the 20 oz bottle from the Red Line oil container, then screw the filler onto the bottle.
3) Put the tube into the filler hole - it fits snugly into the hole. Make sure it's far enough in so that oil does not start leaking while you're putting it in.
4) Turn the bottle upside down and orient it such that the on/off valve is at or above the filler hole height. This is a bit tricky but can be done. You may find it easier to do this step before step 3.
5) Slowly turn the filler to the on position.
6) Squeeze and release the bottle until it's empty or oil is running out of the filler hole. Being able to squeeze the bottle really helped since the oil is so thick.
7) Turn the filler off and refill the bottle if necessary or return the excess oil to the original container if done.

Follow 1-7 for both the transmission and differential. You can wash the on/off filler tool with soap and water for future reuse.

rx8cited

romulus

I couldn't find a picture of the pump that I used, but here a site that has a better one.

http://www.partsamerica.com/PartDeta...egoryCode=3243

rxeightr

Used the Redline products for my tranny & rear end this weekend. Surprisingly, the rear end had more metal shavings than my transmission.

Bought the Redline products from Rosenthal, and ordered my crush washers from my local dealer.

A 15/16 socket fits perfectly for the drain & fill plugs. Used a siphon pump for filling. Most any auto parts store will have this. The pick-up tube supplied fit into the smaller opening of the Redline quart containers.