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[TR] Greenish oil now 50weight?

Subject: [TR] Greenish oil now 50weight?
From: macartney.john at yahoo.co.uk (John Macartney)
Date: Fri, 30 Sep 2011 19:18:37 +0100 (BST)
References: <2163075C495A4AF1A887C353FD425DEF@DELL05639><04dd01cc7c7d$f19fa6f0$d4def4d0$@rr.com><4F26795EE3B548D7B1D37D7F44923C55@DELL05639> <0c0f01cc7d1d$78eddd80$0301a8c0@randall> <DBE3D43FA789479999C4A7DA96457DE4@trigeni.com>
Yes, dear ol' Duckhams is still going. Alongside Castrol Classic 20/50, it's
the other Number 1 choice for the 'ancients.' Still retains the original
properties plus a few other modern ingredients to make it better than ever :)
 
Jonmac

>________________________________
>From: Michael Marr
<mmarr at notwires.com>
>To: Randall <TR3driver at ca.rr.com>;
triumphs at autox.team.net
>Sent: Friday, 30 September 2011, 15:33
>Subject: Re:
[TR] Greenish oil now 50weight?
>
>Back in the day, Duckham's 20/50 was the
recommended multi-grade for most British cars.  I don't know if Duckham's
exists any more - Johnmac?
>
>Mike
>
>----- Original Message ----- From:
"Randall" <TR3driver at ca.rr.com>
>To: <triumphs at autox.team.net>
>Sent: Tuesday,
September 27, 2011 8:58 AM
>Subject: Re: [TR] Greenish oil now 50weight?
>
>
>>> what does the list think of running Valvoline 50 weight oil?
>> 
>>
Straight 50 weight is too thick when it's cold, IMO, particularly with a
>>
freshly rebuilt motor.  Back when I lived in a cooler climate, I found that
>>
the oil pressure would go too high (peg the gauge) even with 40 weight.
>>
Pressure too high puts extra strain on the pump drive, and makes leaks
>>
around the filter head more likely.  It's also apt to open the bypass valve,
>> and feed the engine with unfiltered oil.
>> 
>> But 20W50 (which acts like
20 weight when it is cold) might be OK.
>> 
>> -- Randall
>
>
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>
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