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Daily banter For everything, and anything that doesnt fit in elsewhere |
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#11
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Looking at the typical characteristic for viscosity (mm.sq/s) for each Castrol Edge oil weight, it is as so
Code:
Temp 5w30 5w40 5w50 10w60 40C 66 75 109 163 100C 11 13 17 23
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Matt 2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN, Last edited by mattylondon; 6th September 2017 at 02:59 PM. |
#12
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OK, I can see your point buddy
Is this is the data I can pull off the ECU now, or VCDS needs to be plugged in each time I go for the ride?? Slowly leaning more now towards 5w30 Thank you Matt, much appreciated
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2006 D3 S8 5.2 V10 Ceramic Brakes, Bang&Olufsen, DTV, DAB, Rear Camera, BT, TPMS, Soft Close, Auto Boot, AMI , 4 Zone AC, Home Link, All Electric Blinds, Fingerprint, Ski Hatch, Black Extended Leather, Heated Sport Seats, Alacantra, Carbon Trim inc Aluminium Pack 2. 2015 A3 S line 1.4 TFSI - for the missus to keep her away from my car. Standard S-line equipment, no extras. 2006 D3 A8 3.7 V8 - SOLD but not forgotten |
#13
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You'll have to log live data while driving mate.
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Matt 2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN, |
#14
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Seriously though, (and I have posed this question elsewhere before) if it meets the spec then it meets the spec for normal driving. If you are, as Matty asks doing a lot of high revs stuff, the you should of course look for something that suits that. If it were the case that Company X (usually Brand name e.g. Castrol /BP ) produces a 5W30 that meets the spec but is adding some super-duper additive which achieves some fantastic bettering of engine life or whatever, then you bet they would shout very loud about it. But all they do is make some generic marketing statements dreamed up by cheap suited marketeers hoping you buy their product rather Company Y's as there is no real technical difference between them. In short - and I am happy to be corrected by anybody with sound technical information - IMHO the only real difference between, say Quantum and Castrol is the amount of marketing sh#te which Castrol has to pay for and recovers through higher prices. I stand to be corrected.
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. |
#15
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Marcin, if you really want to worry more about it, check out the High Temperature High Shear (HTHS) value for each oil. This value can give some insight about oils which are perhaps less protective as others.
Of course, annoyingly, some manufacturers don't quote their HTHS values. Some oils are on the 'edge' of the mentioned spec when it comes to HTHS Last edited by Goran; 6th September 2017 at 04:01 PM. |
#16
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Perhaps unnesecary, but you could change the oil on a 6monthly basis? I don't have an '8', but I change my oil twice a year (about 5000miles) because I can.
I would not recommend any oil additives or chemical flushes. The safest method would be to change the oil twice, within a day of eachother. Alternatively look into a company called EDT. We used to have a machine at work. It uses a very thin oil, heated to temperature, which is then flushed around the engine with a machine through a filter which catches debris. The machine also pumps the oil above the standard fill level of the engine, which captures more debris. I did it once on my ancient Fiesta, and the oil now stays clean between services. It's pretty much still golden coloured now. Obviously, we have never done an '8' so I can't vouch for its performance, however every car we did responded well to it. Those additives strip critical components of the very thin coating of oil which is left behind by the oil. I've never come across a horror story, but reading hard enough into it, it doesn't sound wise. And as for oil brand, Quantum is what we used at work, when we had a large VAG franchise earlier this year. Sadly the brand is no longer associated with our company. But the previous comment as for production for VW is correct. Good Luck Marcin!
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Current: MY2019.5 Ford Ranger Wildtrak 2.0 BiTurbo A8/S8 - A gap to fill. Multi-Franchise Main Dealer during the day, Amateur vehicle enthusiast by night. |
#17
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I do oil and filter at 5K on the S8 as well - my engine is brand new so its only on its second ever oil change Last edited by MikkiJayne; 6th September 2017 at 06:16 PM. |
#18
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Quantum is what would be used at the factory or and vw or Audi dealer.
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Owner of a 2008 A8 3.0tdi SE |
#19
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Not really sure why a debate is needed, Quantum is the brand produced by VW/Audi for their engines so meets the required spec (though as has been said it's probably rebranded Castrol or such like), and it's what Dealers and Audi Independant will use too...so sounds good enough to me..
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Audi S8 2015, Daytona Grey Maserati Granturismo 2008, Metallic Nero Carbonio |
#20
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Quote:
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