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Re: [Roadsters] Oil for a U20

To: datsun-roadsters@autox.team.net
Subject: Re: [Roadsters] Oil for a U20
From: "RWM (Out of the Office)" <RWM@RWMann.com>
Date: Sat, 13 Dec 2008 08:44:06 -0500
Used Castrol 20W50 for the first twenty-five or so years, but changed 
about ten years ago to Redline 10W50 (and MT90 in the gearbox).

I have not had any of the expected seal leakage with the synthetics.

- Bob Mann, '68 2000 Solex

 

Gary and Cindy Ault wrote:

> I use Castrol 20W50.  (I don't try to start the car when it's below 
> freezing.  When I did drive the car in the winter, back in the late 
> '70s, I used 10W50 from November through March.)
>
> Gary (Chicago Area)
>
> ----- Original Message ----- From: <nmleeds@mindspring.com>
> To: <datsun-roadsters@autox.team.net>
> Sent: Friday, December 12, 2008 5:57 PM
> Subject: [Roadsters] Oil for a U20
>
>
>> What oil to people use? I have been using 10-40 at sea level, but, it 
>> seems like its slow to get flowing (strangely high pressure during 
>> the first 5 minutes of driving) and burns straight through the engine 
>> when I run it hard (1 qt. every 250 miles). After I've been running 
>> it hard for an hour the oil pressure at idle drops to nothing -- 
>> these readings all from my super-reliable original in dash 
>> four-cluster (so take with a huge grain of salt)
>>
>> I'm tempted to try 5w-50 but thought I'd pick the big brains before I 
>> did anything that drastic.
>>
>> Nathaniel
>> u20-69 SU's (having too much fun)
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