Coming up to a 20,000 mile service, so decided to get a quote from a well known VAG specialist as well as local dealers.
Asked for Long Life oil, as per the perceived wisdom that many on this site advocate.
Said it had already been changed at 10,000 miles, so it wasn't the first service.
Was a bit surprised to see in the response that as a matter of course they will not put long life oil in the cars that they service,
unless explicitly told to do so by the customer, because of many previous problems when using that oil.
Hmmmm . . . . worms, can, and open spring to mind. Not to mention warranty and bye-bye!
So, I phoned up to discuss.
Reason given was that over many years of experience, they have encountered several failures of VAG engines, including the 1.8T and 2.0 FSI,
due to the oil uptake pipe on the suction side of the pump clogging up, obviously a potential engine killer.
They said this usually manifests itself from 8 years - 80,000 miles upwards.
Their experience tells them that it is the long life oil that is the cause of the problem.
What a load of utter bollox.
Did this so-called VAG "specialist", or the others, actually get a formal "Used Oil Analysis" carried out? If not, then they are way out of order to state that it is specifically the oil at fault.
I do accept that there are issues with oil sludge - and this is particularly so on pertol engines with turbos - but this has jack schit to do with "LongLife" oils. It is simply down to incorrect maintenance - which I will address later.
Obviously, not many 2.0 TFSI engines have done that mileage, so they haven't come across a problem with it yet, although they have had an A3 2.0 FSI engine with the problem.
So what was the result of the Used Oil Analysis? Oh, sorry, they didn't do one, did they!

So they can't actually blame it on the oil.
So they highly recommend an engine flush to make sure that all gunge is removed then to use a 10W40 oil instead.
That is really, REALLY bad advice - and is a blatant, "old-skool" un-educated point of view.
And it will invalidate your warranty.
And will affect resale values and desirablity too.
Also said that the 5W30 long life oil will take longer to warm up and this in itself doesn't do the engine much good.
Yet more un-educated clap-trap you have been told. A 5w30 is less viscous (in simple-speak - less thicker) than a 10w40 - so they have got it the wrong way round. The 5w30 oil will warm up sooner than the 10w40.
The 5w30 will also start to protect your engine much sooner than the 10w40, and will use less fuel in the process (due to less "pumping losses").
I guess the other variable is that the spec of the long life oil (now at mark 3) has changed over the years.
Don't know if that makes any difference ?
You are correct that the LongLife oils have improved over the three "generations" of VW standards. However, even the original "Mk1" brew of LongLife is still way better than ANY non-LongLife oil - even a VW502.00 rated brew.
They are an outfit that has received a lot of good press on this web site from many frequent and trusted inhabitants, and they are very familiar with highly tuning all variants of the 2.0 TFSI plant, as well as routine servicing.
They didn't want to be named because of potential problems with VAG themselves, so I won't do that.
Hmmmm, I can't see why they shouldn't be named. Afterall, if you are simply relaying "word for word" (to your best abilites) their advice, then they should be exposed for giving blatantly incorrect, uneducated, and unresearched advice. And should anyone actually follow their advice, then it will become a "nice little earner" for the extra work that will eventually result - as a result of premature engine wear.
Anyone else on here heard of similar problems later in a VAG engine's life that could have been put down to use of long life oil ?
Nope, not the oil.
However, any problems of "issues" to VAG engines are simply down to
two three issues - either:
- a: the owner not complying with the official manufacturer recommendations (specifically regarding the oil used, and the service regime)
- b: stealers (either genuine or independent) not complying with the official manufacturer recommendations
- c: stealers failing to give correct advice on the limitations of the LongLife regime