Volkswagen Fan
I guess that's why manufacturers usually put a line in the owners manual about shorter drain intervals under extreme or heavy duty use.Originally Posted by Martin
In a previous job I did some work on oem oil fill application for transmissions. When trying to specify a "fill for life" fluid the supplier basically said there is no such thing. Doesn't stop marketing from advertising that it is fill for life and they still won't tell you what that expected lifetime is (hint - 100,00km or end of warranty would be a good ballpark).
Volkswagen Fan
Yes same, engine tend to run at around 105-110 in normal driving, but even if I push the car abit going up hill, it doesn't get much hotter (highest I have seen was 114 going uphill at 3000 RPM+ constantly). I think to me, this engine runs hotter, but also more stable.
Volkswagen Fan
High quality oils like Castrol EDGE the VW and possibly Skoda uses will hold up to 202 degrees (according to the spec sheet) which is maximum temperature before it loses its last ability as a lubricant. We do legally 110kph here in Oz but imagine drivers in Germany for example using the Octavia 162TSI which has a top speed of 245 to 250kph, the oil would be at 150 to 160 degrees esily. As long as you use recommended oil, nothing to worry about.
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MY15 TIGUAN 130TDI R-LINE - Pepper Grey, Panoramic Sunroof
Volkswagen Fanatic
Castrol Edge has a flash point of 211 deg - you don't want to be anywhere near 200 degrees
http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/31DA5E6516A53B5980257DFE001321F3/$File/BPXE-9UG2EM.pdf
Oil temperature is not necessarily directly related to speed - it's more about workload
On the track I was hitting 180kmph, the oil only just reached 120 degrees every lap and cooled down quickly when off the throttle
2012.1 Skoda Octavia VRS DSG Wagon - Carbonio cold air intake and pipe - HPA Motorsports BBK 355mm rotors 6 pot calipers
APR Stage II ECU - APR 3" exhaust down pipe & high flow catalyst
APR/HP Roll bars - Eibach springs and Bilstien shocks
Supaloy lower control arms - Enkei 18*8 Wheels
Volkswagen Fan
Looks like this thread is getting a bit out of hand. I really just wanted a poll to see the normal oil operating temperature for this engine since it is higher than any other car I have had.
Seriously, 150deg would be stupid. I would not be operating my engine at that temperature for short term let alone over a 15k service interval. What it says on for flash point or smoke point an oil spec sheet doesn't mean that in an engine application it is safe to run at that temperature.
Volkswagen Fan
I know not exactly the topic but to make it little worse, cars like that are usually driven at high speeds in Germany and their service intervals over there are 2 years or 30,000kms for most newer cars. 15k interval for high quality oils is no problem. I have read German VW & Audi forums where owners have mentioned temperatures of 160 degrees at top speeds. Engines still run and no issues with oils.
MY15 TIGUAN 130TDI R-LINE - Pepper Grey, Panoramic Sunroof
Volkswagen Fan
Well, I wouldn't want to test that out in my own car, maybe in a hire car.
The General rule for engine oil service life is that it is decreased by half for every 10 deg above 60. This is mainly due to oxidation which is the main cause of oil degradation (increases viscosity, depletes additives, increases sludge deposits, increases acidity). So running for long periods at high temperatures is definitely detrimental. Now, OEMs obviously would have to be doing all the development testing to determine what the acceptable limits and service intervals are and we know synthetic oils can withstand higher temperatures being more resistant to oxidation but it still occurs. It doesn't make sense to me to be able to run at those temperatures and still keep normal service intervals and expect a good service life out of your engine.
Saying all that, I'm really not worried that 110 deg cruising is going to damage my engine. It's just interesting that VAG/Skoda would choose to allow higher temps compared to previous versions given for example oil consumption issues they have let alone other engine warranty problems.
Remember that they claim that 1L per 1000km is acceptable! Could you imagine having to use 15L of oil between services?!
Volkswagen Fanatic
I use ~6L between 10k oil changes - I have a 5L oil container in the boot
It's a bit of a pain - you come out of a restaurant, start the car and it complains about oil!
I'm trying the Liqui Molly "Visco Stabil Visco Plus" product which is meant to help
2012.1 Skoda Octavia VRS DSG Wagon - Carbonio cold air intake and pipe - HPA Motorsports BBK 355mm rotors 6 pot calipers
APR Stage II ECU - APR 3" exhaust down pipe & high flow catalyst
APR/HP Roll bars - Eibach springs and Bilstien shocks
Supaloy lower control arms - Enkei 18*8 Wheels
Volkswagen Fan
Ouch!! That is pretty bad. If my mkII was like that I probably would not have bought the mkIII. They've both been great cars overall though, nothing else on the market (in my budget of course) was as versatile and fun to drive. Apart from a clutch failure on the mkII I was pretty happy, I'm hoping it doesn't go again within 60thou or I'll be fairly pissed.
My mkII used very little oil over 100,000km. I topped it up twice I think between services with about 500ml.
As mentioned I do mostly highway driving for extended periods so I am at normal operating temps most of the time. I think this has helped keep consumption low, since my wife took it over and does mostly short trip driving I have had to top up nearly as much in 3000km than what I did for the firsts 2.5 years. I didn't do anything special when running in the engine just drove it normally without babying it and pushed the revs higher every now and then through some mountain runs.
Volkswagenist
Hmm I thought with the FL engine change the oil issues were left behind with the TFSI engine. We saw a bit when new but hardly anything ever since. Certainly no more than around 200ml every 15k at the worst.
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