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[Fot] D-Type Overdrive Recommended oil

Subject: [Fot] D-Type Overdrive Recommended oil
From: duncan.charlton54 at gmail.com (Duncan Charlton)
Date: Tue, 21 Aug 2018 21:59:51 -0500
References: <20180820185524.MJSQ4184.fed1rmfepo103.cox.net@fed1rmimpo109.cox.net> <008d01d4395e$b10aa180$131fe480$@att.net> <1336070557.469314.1534874591867@mail.yahoo.com>
Let?s see if this table of comparative oil viscosity will stay attached.

Duncan



> On Aug 21, 2018, at 1:03 PM, barry rosenberg via Fot <fot at autox.team.net> 
> wrote:
> 
> I agree on the 85-90 weight gear oil. A lot of people think the 90 weight is 
> too heavy or thick but it is very close to a straight 30 or 40 weight motor 
> oil. The viscosity of motor oil and gear oil is measured differently and at 
> different temps. A gear oil has additives and structure that resists the 
> shearing forces between the gear teeth. All TRs came from the factory with 
> this oil and I have used it in customers cars over 40 years. Never a problem. 
> One Healey 3000 had over 976,000 on one rebuild of the overdrive gear box! 90 
> all the time.
> 
> Barry
> 
> 
> Sent: Tuesday, August 21, 2018 1:51 PM
> Subject: Re: [Fot] D-Type Overdrive Recommended oil
> 
> Joe,
>  
> Not sure if anyone answered you yet but I always use 85-90W GL-4 
> non-synthetic oil.  The GL-4 is easier on the brass/bronze components.  The 
> NAPA brand is StaLube 85-90W.  O?Reilly also has a 140W GL-4 if you want a 
> heavier choice.  Moss also carries the Dynolite brand in a straight 90W GL-4 
> for $10 a quart.
>  
> Mike
>  
>  
> Sent: Monday, August 20, 2018 1:55 PM
> Subject: [Fot] D-Type Overdrive Recommended oil
>  
> I am about to dig into my overdrive that quit working and while I am at it I 
> plan to change the oil.  I have previously been using synthetic from Lucas 
> but that is expensive and difficult to get where I live.  So I am looking for 
> recommendations of normal types of oil (Non-synthetic) for the best results 
> using a D-Type Overdrive on a 4-Synchro 3-rail Spitfire gearbox.
>  
> Thanks,
> Joe
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