2.0TSI CCZA constant high oil temps

[Vojtek vRS]

I understand this may already have been asked, so apologies if it is a duplication. It’s also a long one so feel free to peace out. TLDR at the bottom.

I’ve got a 2012 Octavia RS with the CCZA 2.0T TSI engine, same engine as Mk6 GTI (hence post) travelled 90,000kms. Only had the car about 6 weeks and still getting used to it, but have been seeing some pretty high oil temps especially considering it’s winter.

I have a 130km return commute to work everyday, about 80km of that highway driving at 110kmh. During the highway runs the oil temps are sitting on around 112°C and peaking at around 117°C after an uphill stretch. Highest I’ve had was 122° after an extended uphill run with an ambient outside temp of only 13°C. Even in the mornings when it’s around 2-3°C outside I’m still getting oil temps of 112°C. Water temp always on the same 90°, never changes. I’ve been reading a lot and I know these engines run a bit hot, but from what I’m seeing these are temps people are getting on summer days or pushing hard, but I’m just cruising on a highway. I’m particularly worried about what will happen when it’s a 30° summer day and I’m driving uphill with the aircon on. I’ve done a full oil change and coolant change with top quality fluids and still no dip in temp. Upped from a 5W30 to 5W40 Penrite HPR5 to see if that made any change but still the same temps.

It is also burning oil but that is nothing new for the TSI. It’s getting through 1L per 1000km, but the compression is fine and it isn’t blowing clouds of smoke so doubt piston ring or valve seal. Have to get PCV checked and turbo seal checked, but no misfire codes, no flat spots and no drop in performance at all that would indicate anything like that. I suspect that it may burn less oil if I can drop the oil temp a bit and stop it getting so thin.

I’ve had it checked over by a mechanic and it appears as though everything is ok, but I’m just concerned as it’s just a bit too high for comfort. I’m considering fitting an oil cooler to try and drop the temps by 10-20°C, as from what I understand oil temps of between 90-100°C would be much better for engine durability. I have seen it mentioned that the downside of an oil cooler is that it can prevent the oil from warming sufficiently on a cold morning, but I’m thinking this won’t really be an issue if it’s still hitting over 112°C on a freezing cold morning anyway.

Would love any advice on what temps others see, what benefits or problems people have had after fitting an oil cooler, and if I should fit one? Any ideas on what could be causing these high temps and other possible solutions? At this point I can only see an oil cooler being a positive thing, but would like to know if I’m wrong.

TLDR; TSI engine getting high temps of around 115°C during highway driving in WINTER, do I fit an oil cooler?

[sparkey_18]

I wouldn't call that High, I would call it normal. I have had a Golf R and a Golf GTI, both mark 6's sit around the same. I even have an V6 Amarok that reads exactly the same. Constant around the 110 degree mark regardless if ambient temp is 1 degree or 40 degrees.

[Lucas_R]

Just a note - HPR5 oil is not the correct spec oil for modern Vw/Audi/Skoda engines. You should be using Enviro+ which is available in 5w-30 or 5w-40 with the correct VW504/507 spec.

HPR5 is a good oil but just not the right one you should be using.

[Transporter]

From my past experiences. I personally wouldn’t use any Penrite oil in my cars. Sure, the Penrite is a good oil for the Asian and US cars.
The last time I looked up the Enviro 5W40 doesn’t have 504.00 approval. Sure, it could be safely used in TSI but not TDI. As for HPR5 oil, I would void it.


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[Lucas_R]

From my past experiences. I personally wouldn’t use any Penrite oil in my cars. Sure, the Penrite is a good oil for the Asian and US cars.
The last time I looked up the Enviro 5W40 doesn’t have 504.00 approval. Sure, it could be safely used in TSI but not TDI. As for HPR5 oil, I would avoid it.

The Enviro+ 5w-40 is VW502/505 approved ENVIRO+ 5W-40 (FULL SYN.) | Penrite Oil

The Enviro+ 5w-30 is VW504/507 approved ENVIRO+ 5W-30 (FULL SYN.) | Penrite Oil

So the 5w-30 is the correct one to be using in a modern VW/Audi/Skoda engine and is what I use in my Audi SQ5 diesel, but if you are having oil consumption issues, using the slightly thicker 5w-40 oil would work. I used to use the thicker 5w-40 in my Mk6 GTI as it used to burn a little bit of oil.

[Transporter]

Anyone worried about higher oil temperatures, I suggest using good engine oil flush before changing the engine oil and also make sure the oil cooler and thermostats work correctly. The Liqui Moly Engine Detox works very well.


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