Ferrari Mailing List: Re: GT4 video...

[Hans E. Hansen (FList]

PS:

A couple of FChat posts from Rifledriver - a noted F-mechanic:

==============================

MTL actually is for syncro transmissions but is a GL4 instead of GL5
so Redline will not recommend it.

GL4 spec is for low to medium offset hypoid gears while GL5 is for
medium to high offset hypoid gears.

The 308/328/348/355 transmissions do not have hypoid gears of any type
but Ferrari specs GL5 gear oil so a lubricant supplier will not
suggest any but the spec'd oil.

I am not an experimenter of that nature when it comes to client cars
but I have seen 308/328 transmissions running MTL for most if not all
their lives and it was the gear oil of choice for many of the 355
Challenge teams. I know of zero incidents due to it's use. That is
more than enough for me.

My shop is about 20 miles down the road from Redline and I talk to
them frequently. I have asked point blank about MTL and was told it
would be fine but due to it's rating they cannot officially condone
it's use.

I use Redline 75/90NS in the shop to keep it simple because it can be
used in almost all the cars I service but when I get a shifting
complaint in a 308/328/348/355 I put in MTL.

As Kris said, it comes as close to making a Ferrari shift like a
Japanese car as I've seen.

========================================
And similar comment:

My shop is right down the road from Redline and we use their products
in the race cars. I have had many long conversations with them about
their products and their recomendations.

Ferrari specs GL5 gear oils for the transmissions. Due to Ferraris
specs Redline will not officially suggest anything other than GL5 gear
oils.

GL5 basically means an oil that is designed for medium to high offset
hypoid differentials. MTL is a GL4 lubricant which means it is
designed for medium to low offset hypoid gears. In the 308, 328, 348,
355 transaxles there are NO hypoid gears of any type, hi, low, or
medium, offset.


I am not ordinarily an experimenter with others cars except in
circumstances where the official way is obviously not working but I
have seen MTL used with great success and zero problems in 308
transmissions since the product was introduced many years ago. It was
also the oil of choice in the transaxles of the 355 and 348 Challenge
race cars with zero problems. Those transmissions were subjected to
greater stresses and heat in one weekend than most of our
transmissions are in a lifetime. I cannot say that however of the AGIP
oil spec'd by Ferrari at the time. One session at the track finished
off several transaxles and we were told unofficially by Ferrari to
quit using it in cars that would see track service. That garbage did
remain the official oil.

I have been using MTL in customer cars that had cronic shifting
complaints for several years including one 85 308 in daily service
with over 115,000 miles on it and the owner is pleased to this day how
his transmission performs.


It's great oil. If you have a shifting problem use it.


I would not use it in any transaxle in a 275, 330, 365, BB, BBi, TR,
288, F40, 550, 456, 360, 430, 612, or 599. Those are all medium offset
hypoid gear differentials and should have GL5 oil.

=================

Hans.


On 1/21/08, jimshadow [at] verizon.net <jimshadow [at] verizon.net> wrote:
> Did you use the redline NS???
>
> Jim
> Sent from my BlackBerry(R) wireless device
>