[Fot] D-Type Overdrive Recommended oil

[barry rosenberg]

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
   
#yiv6525035276 #yiv6525035276 -- _filtered #yiv6525035276 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv6525035276 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv6525035276 #yiv6525035276 p.yiv6525035276MsoNormal, #yiv6525035276 li.yiv6525035276MsoNormal, #yiv6525035276 div.yiv6525035276MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:New;}#yiv6525035276 a:link, #yiv6525035276 span.yiv6525035276MsoHyperlink {color:blue;text-decoration:underline;}#yiv6525035276 a:visited, #yiv6525035276 span.yiv6525035276MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv6525035276 span.yiv6525035276EmailStyle17 {color:windowtext;}#yiv6525035276 span.yiv6525035276EmailStyle18 {color:black;}#yiv6525035276 .yiv6525035276MsoChpDefault {font-size:10.0pt;} _filtered #yiv6525035276 {margin:1.0in 1.25in 1.0in 1.25in;}#yiv6525035276 div.yiv6525035276WordSection1 {}#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_______________________________________________
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