This old discussion again. As already suggested in our climate just start the engine, put the seat belt on, check the driving controls mirrors etc and gently go. Take it easy for some 5 minutes till the temp gets into the normal range or the cold light goes off, then proceed as normal. I believe that is now the recommendation for all new vehicles. Indeed my car say "do not let it idle for any time"
Bore washing is the most likely problem with a cold diesel and direct injection engines as all new vehicles are, will suffer more that the older indirect injection type. Indeed vehicles made for colder weather do have intake air heaters to help with cold starts to prevent this and ensure good combustion. But if the temp outside is not negative just start and drive IMHO. If it is negative then start and hold a fast idle for a minute til it sounds good, and even, and then proceed.
As for letting it idle for a long time pretending it is a Kenworth with two trailers on, that is just a joke. If you have slowed down and pulled over off the road then just turn it off. IMHO
Jaahn
-- Edited by Jaahn on Wednesday 25th of November 2020 04:27:08 PM
Recoup said
08:31 PM Nov 25, 2020
Derek Barnes wrote:
A neighbour of ours used to start their car, have breakfast taking about half an hour, then drive away!
I think we had the same bloody neighbour , cheers
Whenarewethere said
10:23 PM Nov 25, 2020
Jaahn wrote:
Hi
This old discussion again. As already suggested in our climate just start the engine, put the seat belt on, check the driving controls mirrors etc and gently go.
It takes another minute to turn off all the safety warnings in a car these days otherwise your head will explode with all the distractions!
dieseltojo said
08:56 AM Nov 27, 2020
This bloke might have a style you dislike, but he knows a bit about mechanical stuff. The thing is liking or disliking some one doesn't change the info.
I think just go to the 45 second count to miss the intro.
https://www.youtube.com/watch?v=gGYbSEU75i8
Mike Harding said
01:22 PM Nov 27, 2020
dieseltojo wrote:
This bloke might have a style you dislike, but he knows a bit about mechanical stuff.
Essentially, I agree with all he said.
Especially I agree with his statement "Do not thrash a cold engine" and on that basis I shall continue to let the engine idle for a minute or so and then take it easy for the next four or five minutes. That will do no harm....
Brodie Allen said
01:44 PM Nov 27, 2020
The joys of holidaying in a sardine tin!
Jaahn said
02:46 PM Nov 27, 2020
Hi
Good old John Cardigan sure he knows a lot of good things even if his style pisses a lot of people off Those comments are biased to petrol cars but generally I agree too.
Jaahn
yobarr said
07:37 PM Nov 27, 2020
Jaahn wrote:
Hi
Good old John Cardigan sure he knows a lot of good things even if his style pisses a lot of people off Those comments are biased to petrol cars but generally I agree too.
Jaahn
Absolutely agree that "he knows a lot of good things",particularly his explanations where WDHs are being discussed.Lots of good information there! Cheers
Hi
This old discussion again. As already suggested in our climate just start the engine, put the seat belt on, check the driving controls mirrors etc and gently go. Take it easy for some 5 minutes till the temp gets into the normal range or the cold light goes off, then proceed as normal. I believe that is now the recommendation for all new vehicles. Indeed my car say "do not let it idle for any time"
Bore washing is the most likely problem with a cold diesel and direct injection engines as all new vehicles are, will suffer more that the older indirect injection type. Indeed vehicles made for colder weather do have intake air heaters to help with cold starts to prevent this and ensure good combustion. But if the temp outside is not negative just start and drive IMHO.
If it is negative then start and hold a fast idle for a minute til it sounds good, and even, and then proceed.
As for letting it idle for a long time pretending it is a Kenworth with two trailers on, that is just a joke. If you have slowed down and pulled over off the road then just turn it off. IMHO
Jaahn
-- Edited by Jaahn on Wednesday 25th of November 2020 04:27:08 PM
I think we had the same bloody neighbour , cheers
It takes another minute to turn off all the safety warnings in a car these days otherwise your head will explode with all the distractions!
This bloke might have a style you dislike, but he knows a bit about mechanical stuff. The thing is liking or disliking some one doesn't change the info.
I think just go to the 45 second count to miss the intro.
https://www.youtube.com/watch?v=gGYbSEU75i8
Essentially, I agree with all he said.
Especially I agree with his statement "Do not thrash a cold engine" and on that basis I shall continue to let the engine idle for a minute or so and then take it easy for the next four or five minutes. That will do no harm....
Hi
Good old John Cardigan
sure he knows a lot of good things even if his style pisses a lot of people off 
Those comments are biased to petrol cars but generally I agree too.
Jaahn
Absolutely agree that "he knows a lot of good things",particularly his explanations where WDHs are being discussed.Lots of good information there! Cheers