[Healeys] Oils - engine and gearbox

[Mark Donaldson]

The oil I use in my 100 and 3000 is the excellent Australian oil, PENRITE 20W-60 made for older cars such as ours.

I know a lot of Australian and New Zealand owners use it.  That said, I don’t know how far afield it is exported.

I also use RED LINE MT-90 in the gearbox and overdrive.

 

Mark

Ardmore, NZ

 



 

From: Michael Oritt <michael.oritt at gmail.com> 
Sent: Thursday, 23 April 2020 11:18 p.m.
To: Harold Manifold <manifold at telus.net>
Cc: Warren <flyhihealey at gmail.com>; gradea1 at charter.net; Austin Healey <healeys at autox.team.net>
Subject: Re: [Healeys] Drove the Healey today?!

 

Harold--

 

For the engine I prefer a bit higher zinc, etc. level and use a ZDDP additive, but I agree with your choices for the gearbox and diff and use lubes of the same grades though of different brands.

 

Best--Michael Oritt

 

On Wed, Apr 22, 2020 at 9:32 PM Harold Manifold <manifold at telus.net <mailto:manifold at telus.net> > wrote:

I see the lubricant debate continues unabated. My prediction is there will be a cure for COVID-19 before there is a consensus on what is the best lubricant to use in the engine, gear box and differential. I did some research into the topic a year or so ago. The attached spreadsheet has a summary for what was recommended 50 years ago compared to what is available today. For the record this is what I use:

 

Engine - Castrol Classic XL 20W-50 (Note - Contains 800 ppm ZDDP)

Gearbox - Pennzoil GL-4 Manual Transmission oil 75W-90 (remember there is a convention gear box in front of the OD gear oils unlike engine oils have pressure additives)

Differential - Pennzoil GL-5 Axle and Gear Oil 80W-90

 

Let the debate continue!

 

Stay safe ... Harold

 

 

 


  _____  


From: Healeys [mailto: <mailto:healeys-bounces at autox.team.net> healeys-bounces at autox.team.net] On Behalf Of Warren
Sent: Wednesday, April 22, 2020 2:10 AM
To:  <mailto:gradea1 at charter.net> gradea1 at charter.net
Cc:  <mailto:healeys at autox.team.net> healeys at autox.team.net
Subject: Re: [Healeys] Drove the Healey today?!

This is my understanding of Redline MT 90 transmission oil. Not for differentials. I will return to ND 30 if this is a problem in my OD? My Healey(original owner) has over 190,000 miles. Tranny and OD are untouched until this year. Not really surprised with some wear. MT 90 has smoothed shifting but leaks a lot! 

 

WD 67 BJ8

 

This is a great upgrade for your manual trans! This is one of the easiest "mods" to do for your trans. Drain old fluid, pour this in. The trans will shift quicker, feel less notchy, less wear on its components, etc!

*       Appropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement)

*       Red Line offers lubricants to pinpoint nearly every transmission application

*       MT-90 is not for use in differentials with hypoid gears

*       Excellent gear and synchro protection, balanced slipperiness for easier shifting in cold climates

*       Excellent for high- and low-mile transmissions

*       Compatible with petroleums and other synthetics

*       75W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity)

*       Offers quicker shifts, perfect synchronizer coefficient of friction

*       Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage

*       High performance gear protection and longer synchro life

*       Eliminates notchy shifting, even when cold

*       Satisfies the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 40, 10W40, and 15W40

*       Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified

Most manual transmissions take a little over 2 quarts of fluid.

 

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