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
From: M&M Hado via Fot <fot at autox.team.net>
To: 'Joe Curry' <spitlist at cox.net>; FOT at autox.team.net
Sent: Tuesday, August 21, 2018 1:51 PM
Subject: Re: [Fot] D-Type Overdrive Recommended oil
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{}#yiv6525035276 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 ? ?From: Fot [mailto:fot-bounces at
autox.team.net] On Behalf Of Joe Curry via Fot
Sent: Monday, August 20, 2018 1:55 PM
To: FOT at autox.team.net
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_______________________________________________
fot at autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
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