to increase mpg what is the normal engine warm up time ?

[mad_pete]

Okay but the engine could do it if you wanted. My point is it's a serious bit of engineering to take those sorts of levels. I don't know if the DSG does it based on temp but I know full auto cars that do.

[Mertyvw]

I aint got not Highline Clocks to tell me how much mpg im getting but i always let the engine warm up for at least 3 minutes mate.

[rich83]

I think careful starting and stopping is all well and good but 20 minutes later we ask the engine to rev to 7,000 and the drive train to sort out 230 BHP ++ I think given it stands that it might not mind too much one way or other if it's idling or mild driving for the first minute.  

I know autos take the oil temp in the gearbox and change the shifting pattern until it's warm.

....Interesting about the shifting pattern being influenced by the DSG oil temp.  

As for revving to 7,000 and using the full bhp after say 20 minutes, I very rarely rev above 5,500-6,000 rpm anyway.

DSG is the same... the changes are slower until its warmed up. (or at least thats what I have noticed on mine.)

[Kregiel]

Time needed to warm up properly depends what oil temperature we are talking here... On my polar fis if there is 0 degrees outside it takes up to 30 minutes of driving to bring oil to 90 degrees....

Regarding idle warming best to set off stright away. When idle there is no proper lubrication and this is harmful to the engine

Paul

[RedRobin]

I aint got not Highline Clocks to tell me how much mpg im getting but i always let the engine warm up for at least 3 minutes mate.

....The Midline display will show you your mpg but I guess you don't have a MFSW (Multi Function Steering Wheel)?

[RedRobin]

Time needed to warm up properly depends what oil temperature we are talking here... On my polar fis if there is 0 degrees outside it takes up to 30 minutes of driving to bring oil to 90 degrees....

Regarding idle warming best to set off stright away. When idle there is no proper lubrication and this is harmful to the engine

Paul

....I'm thinking that not driving off from a cold start until the automatic rev settling process has finished (taking about 1 minute), is not enough idling to do any harm. Surely it's not 'idling' until the revs have settled.

[skard]

I aint got not Highline Clocks to tell me how much mpg im getting but i always let the engine warm up for at least 3 minutes mate.

....The Midline display will show you your mpg but I guess you don't have a MFSW (Multi Function Steering Wheel)?

I think he has a 1.9 diesel so may have lowline clocks which only show distance travelled, no trip averages etc.

[Mertyvw]

I aint got not Highline Clocks to tell me how much mpg im getting but i always let the engine warm up for at least 3 minutes mate.

....The Midline display will show you your mpg but I guess you don't have a MFSW (Multi Function Steering Wheel)?

I think he has a 1.9 diesel so may have lowline clocks which only show distance travelled, no trip averages etc.

Yes you are right mine is indeed a 1.9Diesel, But can i have those Highline clocks?

[skard]

Yes you sure can, you know the scan you had - get the part number from 17-instruments (makes it easier seeing what you have now - it'll be like 1K0 920 952).

Even midline clocks are a major improvement for what you have. They are similar looking to lowline but allow for trip information.

It looks like you need a replacement wiper stalk too from that scan so perfect excuse to get one with the trip button 

[Kregiel]

Time needed to warm up properly depends what oil temperature we are talking here... On my polar fis if there is 0 degrees outside it takes up to 30 minutes of driving to bring oil to 90 degrees....

Regarding idle warming best to set off stright away. When idle there is no proper lubrication and this is harmful to the engine

Paul

....I'm thinking that not driving off from a cold start until the automatic rev settling process has finished (taking about 1 minute), is not enough idling to do any harm. Surely it's not 'idling' until the revs have settled.

I think Robin whatever you do to your car you do it right which is proven by your mileage!
1 minute on idle does not have much of impact, I was more thinking of letting engine at idel till warm

Paul

[Kalpsn2000]

Interesting read. I usually startup and am off in about 30 secs. I always reverse out of my drive and I don’t have a clunk when changing in to R on my DSG. My drive is level but I have noticed a clunk when I have changed gears after being parked on a hill.

I do (try to) keep the revs below 2500rpm at least until the coolant has warmed up.

[RedRobin]

I think Robin whatever you do to your car you do it right which is proven by your mileage!

Paul

....Well that's very kind and complimentary, Paul, but in spite of my 104,000 miles I can be wrong! Here's to the next 100k miles.

[rich83]

Time needed to warm up properly depends what oil temperature we are talking here... On my polar fis if there is 0 degrees outside it takes up to 30 minutes of driving to bring oil to 90 degrees....

Regarding idle warming best to set off stright away. When idle there is no proper lubrication and this is harmful to the engine

Paul

....I'm thinking that not driving off from a cold start until the automatic rev settling process has finished (taking about 1 minute), is not enough idling to do any harm. Surely it's not 'idling' until the revs have settled.

I really think you are over analysing Robin, i really cant see it making that much difference to the overall well-being of the engine

[GrayMK5GTI]

Robin, I wonder how many minutes you have spent waiting for the revs to drop in 104,000 miles. 

Probably most of a day in total 

[RedRobin]

Robin, I wonder how many minutes you have spent waiting for the revs to drop in 104,000 miles. 

Probably most of a day in total 

....Possibly, but I have peace of mind.

Are you suggesting that I have wasted a day of my life?