Does occasionally hard reving my new seat leon damage the engine ? I don't reach 6 rpm

[Legojon]

All the guys I have followed in the mapping world have always been very clear warm up cool down.

Also, from my perspective, when i did the 100 or so miles back from Doncaster (spirited) I pulled up on my driveway and you could have fried an egg on my grills. I can't imagine rolling onto the driveway, handbrake on, engine straight off... I let it run for 5 mins just to give all the components a little breather to cool down, not just the turbo. I don't really have any science for this, but it feels the right thing to do.

 

[Rooster]

Modern synthetic oils have reduced the need to let the engine cool down before turning it off, in fact sitting with the engine idling builds up the heat in the engine compartment due to the lack of airflow, just take the last part of your journey easy and turn it off, and look forward to the next journey!

 

[Legojon]

Modern synthetic oils have reduced the need to let the engine cool down before turning it off, in fact sitting with the engine idling builds up the heat in the engine compartment due to the lack of airflow, just take the last part of your journey easy and turn it off, and look forward to the next journey!

What about the coolant? Would idling give the coolant temperature time to come down (I realise this would mean fans on)? I could feel the glow off my coolant reservoir!

 

[Maypack]

Also, from my perspective, when i did the 100 or so miles back from Doncaster (spirited) I pulled up on my driveway and you could have fried an egg on my grills. I can't imagine rolling onto the driveway, handbrake on, engine straight off... I let it run for 5 mins just to give all the components a little breather to cool down, not just the turbo. I don't really have any science for this, but it feels the right thing to do.

I remember you doing this the first time we met at Castleton. I understand your logic, especially how heavily modded your car is.

My Mk3 CUPRA quite often has the cooling fans running after the engine is turned off but I do follow the thought that for the final 10-15 minutes before I get home I let the engine revs drop off and take it easy.

As you’ve said there is no science for it and it’s your car so it’s the right thing to do for you (and me with my method)


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[CovFC87]

I'm sure my friend's S6 used to start pumping the oil round when the car was unlocked, before you even turned the ignition on, you could definitely hear something, or maybe it started to warm it up? I might be totally wrong, but if it could do that on a now ten year old car, I'm sure it could keep pumping the oil after the ignition is off on these new ones.

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[CovFC87]

I'm sure my friend's S6 used to start pumping the oil round when the car was unlocked, before you even turned the ignition on, you could definitely hear something, or maybe it started to warm it up? I might be totally wrong, but if it could do that on a now ten year old car, I'm sure it could keep pumping the oil after the ignition is off on these new ones.

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I think that may actually have been the fuel pump priming. There are comments on the Audi forums about a secondary coolant pump kicking in when the engine is turned off.

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[k290b]

The oil pump is driven off the engine so don’t think it would on these

Maybe on a dry sump set up with scavenger pumps it would prime the engine first but I think these are a mechanical pump

After an oil change or storing my cars I always disconnect the coils and turn the key till the oil light goes out to build oil pressure before starting it.

 

[Legojon]

As you’ve said there is no science for it and it’s your car so it’s the right thing to do for you (and me with my method)

Yeah, I do try and take it easy the last part of the journey. And if I've been eg sitting waiting at lights or summat for 5 mins before pulling up on my driveway, I consider that my cooling down period. But generally if leaving the engine idle while I unplug my phone, dashcam, latte maker, 2 bar electric fire does no harm, but *might* extend the life of my engine and turbo. I've not really lost anything.

 

[Seastormer]

I would say your right

Me too theoldboy knows his stuff, and I always do the same,

 

[r3d]

AFAIK its as about the oil as it is about the turbo. Engine head is not that much hotter after spirited driving than normal driving as it is aluminium, cooled by coolant flowing through it and also modern engines have auxilliary coolant pump that always operates after you turn the engine off.
Problem is the engine oil sitting in turbo after the flow stops that gets superheated from the hot turbo and degrades. Thats why you should wait a couple of minutes to cool the turbo down. It should not take more than a minute IMO because the metal/liquid heat transfer happens quite fast. Radiator fan should be working anyway if the car is hot enough so that should eliminate the engine bay overheating problem.

 

[Rooster]

I've seen first hand inside an engine manufacturers testing facility, and believe me, your engine will never come close to the punishment that those engines are exposed to! It made me wince just listening to the noise and watching the exhaust manifold glowing cherry red. And people think a simple dyno run is brutal!