Oil..

[Mark-RS]

Just a quickie...

Is there a reason to use 5W40 over the 5W30 that every single site seems to say to use ? Any garage says 5W30, all car parts sites say the same.

So is there a reason ? Age of the car ? Engine wear ?

[Mark-RS]

Never mind.... Found my own old thread !

viewtopic.php?f=2&t=129777

[Lander91]

Gotta love oil threads.

Interesting though, there are 2 suggestions for oil on our cars currently (Factory suggestions).

A 'high lubricity' option "Special G" (sounds fancy)
5 Litre
G S55502M4 - vw 502 00 & 505 00
5W-40

A 'Long-life' option
5 Litre
G S55545M4 - vw 504 00 & 507 00
0W-30

A bit of a conundrum if you were going off this advice solely. Luckily there's plenty of experience here and if something was to cause issues it would be documented, so regardless of what factory states I'm going with the Castrol FST suggestions on here.

[Shoppinit]

I had it from the horse’s mouth at Quattro GmbH that the RS6 needs the 5w40. That’s what I’ll be putting in mine. Dealerships like having as few barrels as possible. They don’t care if your turbo does a few thousand miles earlier than it would have with the right oil.

[Lander91]

Ja! 5w40 to 0w30 sees like quite a change. If I was to go into a dealer here and request the "special g" (special guice??) it would be a special order, ex overseas, and twice the price of the long life (which they have on tap, used in everything).

[Mark-RS]

https://www.ebay.co.uk/itm/283213857443

This is what I ended up going with in the end. Especially after all the talk of "Ester" oils in my previous thread.

That's me all sorted now waiting for the service and Cambelt on the 7th April

[steve2003rs6]

Hi mark. Can you enlighten me.
Says it’s for manual transmissions ?
Guaranteed leaks free. Is that for leakage during transit.
I must be missing something. Which wouldn’t be the first time !
I am just curious as mine will be in for service very soon.
Must admit I like the read up on ester oils.

[Mark-RS]

Check the link on the second post here to the old thread. It's one of the Oils recommended by Oilman of Opie Oils, one of the sites sponsers. He goes into quite a bit of detail about Ester oils. It's a decent enough read, although there is a lot of info.

Something to do with Synthetic oils in this country not being actually synthetic, due to using Hydrocracked minerals. Whereas Ester Oils do not. And are made to a higher grade. If I read it correctly anyway.

I don't believe the manual transmission means anything. Perhaps just an eBay section that needed to be filled in ? Leaks free ? Not a clue....

[Mɐʇʇ]

Off the back of that thread, I run an ester synthetic in the boat motor now.

[steve2003rs6]

Cheers guys. Will probably try it at this service visit.
After a bit more reading.

[IchBautAuto]

Gotta love oil threads.

Interesting though, there are 2 suggestions for oil on our cars currently (Factory suggestions).

A 'high lubricity' option "Special G" (sounds fancy)
5 Litre
G S55502M4 - vw 502 00 & 505 00
5W-40

A 'Long-life' option
5 Litre
G S55545M4 - vw 504 00 & 507 00
0W-30

A bit of a conundrum if you were going off this advice solely. Luckily there's plenty of experience here and if something was to cause issues it would be documented, so regardless of what factory states I'm going with the Castrol FST suggestions on here.

Appreciate that people might start from the end and work backwards, I like to start at the beginning. When the car was released the specified oil was a 5W-40 to 505.01. Oil change every year (not long life) and the engineers chose this oil for good engineering reasons. It is fully explanined somewhere on here as well as many other sources.

Of course as time passes old spec oils fall by the way side and they are replaced by new formulations that are multi-function. Or are they really?

The old story of user pays or buyer beware applies in spades and it was mentioned recently that the seller of oils won't care if something fails earlier than expected, not his problem. When I bought my car it had 5W-30 Motul in. The car used a bit of this but since changing to Liqui-Moly 5W-40 4100 oil consumption has been negligible. It seemed like a case of choosing brand over spec.

I note that your specs didn't include 505.01, just oils that are said to replace that spec. Anyway, my recommendations are to start with the manufacturers specification and choose the replacement oils with care.

[Shoppinit]

^This

[Lander91]

^This

100%

I get my old man to service his 300,000km R5 Touareg at a VW dealer, but only because they know to use the correct standard oil that these engines need, that and it's only $299..

[Human Joist]

So are we saying we are now moving from 5-30 to 0-40 fully synthetic for our cars now. I’ve always used the factory spec 5-30 and not really worried. But am keen to discover if I’ve missed a trick. Car doesn’t use any oil

[Shoppinit]

Not moving from 0w30. It's never been right for the RS6. It's a 505.01 oil that you need (was developed for the PD engines and was chosen for the RS6 because of its superior properties and harsh mechanical environment resistance at the time).