First service, oil issue
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First service, oil issue
Hi, I'm having trouble obtaining 15w50 fully synthetic for my wrx sti classic version 6. It's in very good condition but halfords seem to have sold out of the litre bottles and the 4 litre bottles. I've spoken to them over the phone and they say that it's been discontinued.
Could someone recommend what I'm supposed to be using for my car? It's standard and hasn't been modified.
Thanks!
Could someone recommend what I'm supposed to be using for my car? It's standard and hasn't been modified.
Thanks!
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You get the 15w50 motul 300v in 2ltr tins, you may be better off (especially in the cold) with a 5w40 or a 10w50 on a higher mileage engine.
Try www.opieoils.co.uk
Tony
PS, 10w40 semi synthetic is the standard oil, you can get millers 10w40 fully synthetic if you wish? (also available from the above )
Try www.opieoils.co.uk
Tony
PS, 10w40 semi synthetic is the standard oil, you can get millers 10w40 fully synthetic if you wish? (also available from the above )
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http://www.opieoils.co.uk/p-60123-gu...oil-15w50.aspx
Seems pretty cheap compared to the mobil one kind.. is this some kind of budget oil?
Seems pretty cheap compared to the mobil one kind.. is this some kind of budget oil?
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I think its the wrong grade for a road only car. But many will have different opinions.
5/40
10/40
10/50
Not in that order is what i think you should be using. 10/40 being my preferred grade
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OP, a 15w oil means it takes quite a while to warm up, hence a 5w or 10w are better.
So just to go over this as im not sure you understand this, the first number is the cold, the second the hot, lower the cold, faster it warms up, higher the cold, slower it warms (basic laymans terms, google it as it will give you a better anology), so running a 15w in sub zero temps really isnt a good idea.
Tony
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What in the 15w oil makes it take longer to get warm than a 5w?
Bearing in mind the only difference between 5w and 15w how fast it flows at low temperature.
a 15w-40 takes no longer to warm up than a 5w-40.
With our temps hitting -15 at night though, I wouldn't want to crank my engine with 15w oil in it however.
Last edited by Galifrey; 12 February 2012 at 04:56 PM.
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So yeah, physics does have the answer, just not your one
The difference between a 5w-40 and 15w-40 is that a 5w has more viscosity modifiers to make it pour better at 0 degrees. A 0w oil is obviously a fallacy, but what it refers to is a lower than 0 degrees pourability.
a 0w/5w/15w-40 oil are all likely to use the same base stock, and less additives are more desirable as they leave less deposits on the turbo shafts, however, you need to balance this with being able to crank the engine on a cold winters morn
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