PAP348 GEARBOX OIL CHANGE

Just clarifying, so you originally recommended the Shockproof but you now are recommending the Non-Shockproof...

I'm asking because I am going to be changing mine, and I want what is best for my gearbox!

Thanks

 

Obviously a lot of thoughts/threads on this subject. Talking Redline only, the 75-90NS really helps the box shift better and cuts down on the balky 2nd gear when cold scenario. However, it's not supposed to work well with the LSD. Does it do any damage to the LSD clutch? 75-90 works great with the LSD but can be hard on the synchro's as it's too slipery. The old concern about gear oil that was formulated for LSD eating brass parts like synchros is a thing of the past. The LSD compatible synthetics Royal Purple, Swepco, Redline don't eat "yellow" metals.

Are these assumptions correct?

 

Ha! Now I'm confused, too! I use Red Line's "Superlight Shock Proof 70W90" synthetic gear oil which seems to have "75W90NS" as the part #.

It's yellow. The fluid itself is yellow. If you get the red fluid, that's not what I'm using to get such silk-smooth shifts. $86 for a case of 12 liters, or something like that:http://www.racerpartswholesale.com/redline2.htm

 

Whew, I am confused!

I reading on Redline's website..... www.redlineoil.com and they have....

Under Gear Oils...

Synthetic Gear Oils

75W90
75W90NS which is the GL-5 type gear oil

Shockproof Gear Oils

Superlight Shockproof (which has a viscosity of 75W90 gear oil but lower internal friction similar to that of an ATF )

Lightweight Shockproof (A unique gear oil designed to lubricate racing transmissions and transaxles which see serious loads (not recommended for most syncro-type transmissions). It has excellent low-temperature flow which allows easier shifting when cold. May be used to obtain maximum power transfer in racing differentials which do not see high temperatures. Similar to a 75W140 gear oil, but with the lower internal friction of an SAE 30 motor oil.)

Heavyweight Shockproof (A unique lubricant containing a suspension of solid microscopic particles as an extreme pressure agent--unique solid dispersion which cushions gear teeth to help prevent tooth breakage and allows the use of lower viscosities. Recommended for heavily-loaded racing differentials and transmissions, Off Road racing and problem gearboxes. The viscosity characteristics allow the lubricant to resist throwoff and provide a film thickness similar to a 75W250 grade, while providing the same low fluid friction as an SAE 75W90.)


Then they have....

Manual Transmission Lubricants

75W90NS (This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.)


So which one do we want!!!!!???????????????

And what the heck is the difference between a Manual Transmission Lubricant and Gear Oil, especially the 75W90NS's???

 

I think we can narrow it down to 75-90 or 75-90NS. I'm curious about damage to the LSD and if the either can corrode yellow parts.

 

Pap348 used the superlight shockproof though.....

and as for the 75W90NS, the GEAR OIL or MANUAL TRANSMISSION LUBRICANT, or are they the same product??

 

70-90w NS is *completely* different from the "shock proof" variant. Redline doesn't recommend the shock proof for transaxles. I have tried it and found the 70-90w NS was better. There is no such thing as "No Shock" Redline. NS is for non limited slip transaxles. That is why some have added a little additive to the gear oil. I have had to add some and other times not. It seems some Ferrari gearboxes need it and some don't. As usual, "no doubt" spreading incorrect info.

 

What is the additive that you speak about, and is the 75W90NS gear oil and manual transmission lubricant the same product?

 

Vern, you crack me up! One day you'll catch on. In the meantime, I've uploaded 2 pictures so that my words don't confuse...mmm...anyone.

In the first picture is what you order from racerpartswholesale.

The 2nd picture is what you will receive in the mail from them.

Use the yellow gear oil from the 2nd picture in your 348 and you will get silky smooth upshifts and downshifts, hot or cold.
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I have used GMs limited slip additive but, there have been times that I haven't had to use it. Start with the NS(5 Quarts) first, then see if you get a binding noise from the gearbox/diff. in a tight turn. If you do add about an once of additive, that should take care of it. If no noice than don't add anything. It's kind of strange some times I've needed it and others times not. The NS stuff is also different from the MTL. It is a little thinner, MTL, than 75-90w and is a GL-4 rated oil where the NS is GL-5. Ferrari specifies a GL-5 but I have used the MTL stuff and it seems to work fine also. I have been using the NS stuff because its a little thicker and just for my personal piece of mind I've been using it instead of the MTL variant. Regards, Vern

 

LOL. Wrong picture for NS dumb A** the pictured bottle is the shock proof the quote is for NS. The lubricants are two different products. NS is one product and "shock proof" is another. Since you love quoting web sites so much go to Redline's and look

 

I was simply showing you #1 what I ordered and #2 what was delivered, which is what I installed in my car (twice now).

If you think that they delivered the wrong product, then you'd be doing the 348 Brotherhood as well as Racer Parts Wholesale a big favor to correct them.

Please, by all means take up your issue with them. You'll find them here: http://www.racerpartswholesale.com/redline2.htm .


But in the meantime, considering that RPW told me over the phone that 75w90NS was their shockproof gear oil, and considering that's what Pap 348, Dr.T348, as well as myself are successfully using, I'll have to consider that the above pictures are accurate.

You would also do well to talk to Daniel Pass here online, as he is unsuccessfully using Red Lines "75w90" instead of the "75w90NS" as used by the above crew (if indeed the pictures are accurate and RPW delivered the correct product).
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EDIT: RacerPArtsWholesale is incorrect. There are two different products "75w90NS" and "superlight shockproof gear oil."

No Doubt and Pap 348 are using "superlight shockproof gear oil."

 

I didn't say they delivered the wrong thing I said your/their discription is in correct for the pic they are using. Go to redline website and look. 75-90W AND THE NS VARIANT AND "SHOOK PROOF'" OILS ARE TWO DIFFERENT PRODUCTS" AGAIN GO TO THEIR WEB SITE AND LOOK.

 

Whew! I found them both. Here's the correct for the 348 "superlight shockproof" gear oil: http://www.redlineoil.com/products_gearlubricants.asp?subcatID=20&prodID=61

and here is the "75w90NS" http://www.redlineoil.com/products_gearlubricants.asp?pvID=82&prodID=60&subcatID=20

So, RacerPartsWholesale either lists an incorrect description or else mailed the incorrect (yet right for the 348) product.

No wonder this thread was so confusing!

 

I was never confused and if you would have stayed out of the conversation no one else would be either.

 

Oh, Vern. If I'd stayed out of the conversation everyone would be using the wrong product, per your incorrect recommendation above (see Daniel Pass' experience with RL "75w90").

I'm the one who has been correctly recommending Redline's superlight shockproof gear oil all along.

The only confusing part was that RacerPartsWholesale has buyers order "75w90NS" to get "Redline's superlight shockproof gear oil." That's RPW's problem.

 

I don't think there is any reason not to use the Shock Proof(and I never said there was) stuff if it works for you. I was just stating what redline info. says, they don't recommend it. I've tried it and it work OK for me too. I just seemed to find the NS stuff worked better and was a Ferrari recommended GL-5. From what I have seen over the years is every gearbox/transaxle apears to respond to different stuff some need the additive some don't, the MTL works for some Ferrari boxes and not others even when used in the same model. One 348 I owned shifted smoothly on NS and a friends car needed some additive. Go figure. Regards, Vern

 

i've heard that you must change the Gbox oil at certain intervals even if you don't drive your car, like the motor oil, is this true?

 

My, my...how quickly some forget their own words...

 

Gear oil picks up moisture/condensation, certainly...whether you use the car or not.

 

The guys using the NS stuff are not using the wrong product. If daniel is using stand 70-90w NS it maybe he needes to add a bit additive as I said in the above post every car appears to different in how they react to Redline. Your lack experiance and knowledge and your ability to make a fool of yourself is great entertainment. You need to check you ignorance and arrogance at the door.

 

Vern, you just can't spin your way out of this.

You recommended the wrong product. Your post #11 in this very thread recommended the product "75w90" that Daniel Pass doesn't like at cold temps...and in that same post you claimed, in error, that we shouldn't use the shockproof gear oil...the gear oil that is working wonders for Dr.T348, myself, and Pap 348.

...the product that I recommended from firsthand experience, unlike your own.

Post #11, baby!