MDofTW Posted September 23, 2015 Share Posted September 23, 2015 Hi all, here's your stupid question from me for this week. What spec engine oil do you all recommend (as in 10/40, 20/50 etc)? AND, does anyone know what these designations mean, and finally any preference on make? It's to go in a Vitesse 2.0l engine. Thx all. Quote Link to comment Share on other sites More sharing options...
nang Posted September 24, 2015 Share Posted September 24, 2015 20/50 or 20/60. I use Penrite. Don't know what brands you have in your part of the world.Tony. Quote Link to comment Share on other sites More sharing options...
Clive Posted September 24, 2015 Share Posted September 24, 2015 First number is the oil thickness when coldSecond number is when hot, but refers to the oil thickness when cold Sounds confusing!What it means, taking 20-50 oil as an example, it behaves like a straight 20 oil when cold, but at operating temp it behaves like a 50 oil. so it does not thin as much as expected. This is good news, You want an oil to be "thin" and easy flowing when cold, but don't want it to be so thin that is is useless when hot.In addition to the "weight" of the oil tere is another specification, usually sf/sg/sh/sj etc and refers additives. There are some very cheap 20/50 oils out there with no spec. I believe these are recycled oils, may or may not be any good, but why take the risk.Halfords and comma (same stuff) do a classic oil, should be OK. If you drive your car at all ahrd I would recommend Valvoline VR1, usually a code available from eurocarparts and about £25 a tub. If better still, penrite or millers css 20-50 or even 20-60 (the latter was VERY good when I used it, and will be putting it in my other trimph once leak free) Quote Link to comment Share on other sites More sharing options...
Clive Posted September 24, 2015 Share Posted September 24, 2015 Opie seem to have a few decent offers at the moment, although £50 spend for free shipping.Millers css 20-50 at £30 is a very good price!http://www.opieoils.co.uk/c-661-20w-50.aspxand the 20-60 at £35...http://www.opieoils.co.uk/c-663-20w-60.aspxAnd I think there are plenty of discount codes to use there as well? Quote Link to comment Share on other sites More sharing options...
mazfg Posted September 24, 2015 Share Posted September 24, 2015 I use this http://www.wilko.com/car-care-products/wilko-20w50-classic-car-oil-5l/invt/0342792 £15 for 5litresHas a greenish tinge and looked exactly like the Comma classic oil I used to buy! http://www.ebay.co.uk/itm/COMM.....p2141725.m3641.l6368 Quote Link to comment Share on other sites More sharing options...
MDofTW Posted September 28, 2015 Author Share Posted September 28, 2015 Sorry for late reply - have been away for a few days. Big thanks for answers - very helpful. Cheers. Quote Link to comment Share on other sites More sharing options...
JohnD Posted September 29, 2015 Share Posted September 29, 2015 To learn about oils, read a little book "Which oil" by Richard Michell, Pub.Veloce. http://www.veloce.co.uk/shop/p.....%20Modification&Michell's career was in the oil industry, and he has been a classic car owner for as long, so he is well placed to teach us about oils.John(No connection with author or publisher, but have bought and read the book!) Quote Link to comment Share on other sites More sharing options...
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