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john-saab
Joined: 06 Dec 2007
Posts: 341
Location: West Dorset
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 Posted: Sat Dec 04, 2010 9:19 pm Post subject: Castrol XL..what's the modern version? |
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I have been looking through the 1938 Morgan Super Sport's manual and it reccomends Castrol XL for the Matchless engine..any ideas what teh modern equivilent would be? I know Castrol offer XL now but in different grades..what grade was XL back in the 30's? I want to do an oil change tomorrow if possible and i know if i contact Castrol they can help but not until Monday.
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47p2
Joined: 24 Nov 2007
Posts: 2009
Location: Glasgow
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| Posted: Sat Dec 04, 2010 10:26 pm Post subject: |
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Xl would be a straight 30w grade oil. If I were you I would be tempted to use a 20w-50
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ROVER
One of Britain's Fine Cars |
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john-saab
Joined: 06 Dec 2007
Posts: 341
Location: West Dorset
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| Posted: Sun Dec 05, 2010 10:21 am Post subject: |
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Thank you..i will use 20w-50.
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47p2
Joined: 24 Nov 2007
Posts: 2009
Location: Glasgow
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| Posted: Sun Dec 05, 2010 4:09 pm Post subject: |
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20w-50 gives more flexibility with modern fuels which run hotter than 1938 fuels.
My Rover should run on straight SAE30w but I use Penrite 20w-50
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john-saab
Joined: 06 Dec 2007
Posts: 341
Location: West Dorset
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| Posted: Sun Dec 05, 2010 7:07 pm Post subject: |
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We have many cars that run on 20w-50 so i'm looking into buying it by the barrel.
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websnail
Joined: 26 Oct 2010
Posts: 78
Location: West Sussex
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| Posted: Sun Dec 05, 2010 11:20 pm Post subject: |
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| john-saab wrote: | | We have many cars that run on 20w-50 so i'm looking into buying it by the barrel. |
If you find somewhere to buy larger volumes, can you let us all know?  |
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Phil - Nottingham
Joined: 01 Jan 2008
Posts: 1252
Location: Nottingham
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| Posted: Sun Dec 05, 2010 11:36 pm Post subject: |
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I get 4 x 1 gal Comma 20/50 - in green containers from local motor factors - trade was £20 last time. I use a lot and have been using this since mid 1980's
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Car-Nut
Joined: 06 Feb 2010
Posts: 146
Location: Lancashire
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Rich5ltr
Joined: 28 Mar 2008
Posts: 681
Location: Hampshire, UK
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| Posted: Mon Dec 06, 2010 10:34 pm Post subject: |
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| I bought Castrol Classic 20w50 in a 20 litre drum delivered direct from Castrol at about £80.00 |
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