Thought I'd seen a thread like this before but cannot find it now, so apologies in advance.

What is the general running temp for the vRS oil. I know the engine runs very hot, resulting in various issues, but I cannot believe in the current ambient temps that I seem to hover around 90, what will it be like in the summer!

around town i see 85-90degrees. On the motorway it rises to 100degrees. On track it rises to 120-130degrees!!!!

At that temperature the viscosity of the oil really starts to lower, which means less lubrication. Normal oil is designed to operate at its optimum performance around 87degrees. It breaks down at higher temps so is something to keep an eye on I changed my oil after the first time this happened to Motul V300 oil which maintains its viscosity upto 145degrees. Im still getting an oil cooler fitted though

Never been higher than 91 degrees on mine.

Never been higher than 91 degrees on mine.

Really? That's pretty impressive.

Highest I've seen is 110

Never been higher than 91 degrees on mine.

Then your quite clearly not driving hard enough haha. Mines usually between 90 and 95

as already said, mine has ranged from about 90 to 115.....

85 crusing at 60, 90 at 70ish think highest ive seen is 105

Depends usually see anything from 88 - 95 normally. If in traffic for a long time I tend to stick the AC on to bring down the temps.

Highest temp I've seen is 115 after a spanking

around 80

Edited 21 April, 201214 yr by daydotz

Not average

Edited 21 April, 201214 yr by irfant

Mine averages at around 70-80 when driving Miss Daisy. Around 90 when I've toed it a bit.

Really the highest its got is 91 - I always try and change up at 6200 rpm or so even when in sport - not much after that only loss of bhp and the redline

Not average

You need Petrol

I don't look at it tbh. I've seen 100 once but no idea if it's been higher but I bet it has.

You need Petrol

After stage 2 mod car drinks petrol very much

I don't look at it tbh. I've seen 100 once but no idea if it's been higher but I bet it has.

If im on track/1/4 mile or have been driving hard i always turn the MFD to oil temp, also use the oil temp to know when the engine is warm and ready for some proper use. The engine water temp normally shows 90 degrees well before the oil temperature is at about 70 degrees. I wont take mine past 4000 rpm until the oils above 80 degrees

After stage 2 mod car drinks petrol very much

Mines still the same as stock as far as i can tell!!

If im on track/1/4 mile or have been driving hard i always turn the MFD to oil temp, also use the oil temp to know when the engine is warm and ready for some proper use. The engine water temp normally shows 90 degrees well before the oil temperature is at about 70 degrees. I wont take mine past 4000 rpm until the oils above 80 degrees

Snap, always use the MDF...I never rev above 3k until above 80deg, aslo I let it idle after a caning until temps have dropped to mid 80's before switching off

Oh I check the oil temp to see if it's rising and once it gets to around 70-80 then I'll go all out if I want to. Will drive normally up until that point though

It's a boon having the oil temperature indicator. I have it switched to that on the MFD permanently.

I've never seen the temp go above early 90s (possibly 95 max) but mine leads a fairly leisurely life - it gets the occasional short, sharp blast but never a total caning. However, that may change now we're getting into the better weather...

180 degress oil temp on the Skoda Bonneville engine in 55 degree ambient!!

Longlife 3 oil won't split till well over 150 degrees....believe me I know!

A few pulls on a vRS on a dyno will see oil temps on 120 - 130 degrees and the oil is still behaving perfectly!

Good quality, clean oil and you won't need to worry!

If you are a keen track user, castrol, motul etc will offer better cooling properties for the ABUSE! ;-)

180 degress oil temp on the Skoda Bonneville engine in 55 degree ambient!!

Longlife 3 oil won't split till well over 150 degrees....believe me I know!

The Bonneville vRS wasnt an everyday car though. Im thinking of longevity etc and want reliability. FWIW my oil on my Octavia vRS never went above 110^oC on track. That to me is the upper limits of what i would deem as acceptable.

Not to sure if these cars use the longlife oil either as they are fixed service and not flexible service, so i think they use the cheaper of the VAG oils.

A few pulls on a vRS on a dyno will see oil temps on 120 - 130 degrees and the oil is still behaving perfectly!

Good quality, clean oil and you won't need to worry!If you are a keen track user, castrol, motul etc will offer better cooling properties for the ABUSE! ;-)

A few runs on the dyno with high oil temperature isnt that bad. Running the car for 30 minute + periods on track at high RPM with oil temperatures above 120/130^oC is a completely different matter.

The Motul 300V oil I use has a max temp of 145^oC before it starts to break down. Optimum oil temperature for a turbo charged car from what i gather is 87^oC, which just so happens to be what thermostatic sandwich plates that feed external oil coolers open at. Still not to happy with how high my oil temp gets even if the oil is up to the job. Id be happier with a 20-30^oC temperature drop.

As you said you were hitting 180^oC at 55^oC ambient with 700Hp and probably massive boost = +125^oC. Thats kind of expected with a car of that magnitude.

Mine hits 130^oC at 15^oC ambient with only 213Hp with low boost = +115^oC. This is a low power, lightweight car. Ive not done a trackday with my current setup but im using a bigger turbo with alot more boost so i expect temps to get worse

180 degress oil temp on the Skoda Bonneville engine in 55 degree ambient!!

At least it won't have taken too long to warm the engine up then!

My S2000 used to have comical oil temperatures on track, never, ever used a drop of oil though.

My Fabia probably stays 84-93 in usual driving depending on how long I drive for. I've had it over 100 degrees a couple of times when back road blasting, but I'd imagine it would be 120-130 when I got nervous.

You deem 110 degrees as the upper limits of acceptable? Most good quality oils aren't even into their stride by then!

A good quality oil gets better with heat, not worse! Its why Audi lock their V8 engines and V10 engines does to half revs until the oil temp comes up.

Longlife 3 is the top oil VWG make and from stock is what would have been in your vRS!

If your car doesn't go over temp on a dyno running a 5 or 6 sweep tests then it wont overheat on a track no matter how good a driver you are! That's why engine and chassis are tested in a cell...not on track!

My experience tells me you won't se oil temps jump that high when you start to raise your power! I have seen 260bhp on a road going 1.4 twin charger running a standard oil cooler and oil temps are similar to yours!

What makes you think your Motul 300v breaks down at 145 degrees? It has a viscosity rating at 150 degrees on the Motul website of:

HTHS viscosity at150°C (302°F) ASTM D4741 4.19 mPa.s (taken from Motul website).

No way is it breaking down at 145 degrees, the oil temps of the Bonneville engine were on longlife 3 oil and that wasn't splitting!

If your car doesn't go over temp on a dyno running a 5 or 6 sweep tests then it wont overheat on a track no matter how good a driver you are! That's why engine and chassis are tested in a cell...not on track!

Whilst i appreciate that you are part of the team that built that bonneville engine so you obviously know your onions, i just cant see how a short dyno will heat the oil as much or more than what a track session will. If for instance you do 6 consecutive runs on a dyno, thats probably no more than a couple minutes of WOT application and thats probably with a small coldown period to get your IATs down again. On a track your probably on WOT or above 5000rpm for 30 minutes at a time if not more. How can that be the same?

My experience tells me you won't see oil temps jump that high when you start to raise your power! I have seen 260bhp on a road going 1.4 twin charger running a standard oil cooler and oil temps are similar to yours!

Tell me more then. Is this UK based, what turbo (because thats not stock), which engine (ie 160ps/170ps/180ps), what tuner etc

What makes you think your Motul 300v breaks down at 145 degrees? It has a viscosity rating at 150 degrees on the Motul website of:

HTHS viscosity at150°C (302°F) ASTM D4741 4.19 mPa.s (taken from Motul website).

No way is it breaking down at 145 degrees, the oil temps of the Bonneville engine were on longlife 3 oil and that wasn't splitting!

Thats what the Motul representative told me when i asked him.

Tbh even if it isnt breaking down or even close, im still not happy about that temperature on a personal preference basis. Thats alot more than any of my last 3 cars all of which were running alot more power. I want everything to run cooler for longevity purposes. Ive already solved the very high water and Intake air temps. If i can reduce the oil temperatures to a peak of 110^oC ill be happier to stay out on track alot longer, plus i wont have to do 3-4 cooldown laps everytime i finish a session just to get the oil temperature below 100^oC.