One of the checks is the smoke coming out of the exhaust, can’t do it without the engine running, nor the steering or brakes. I sit with it on until I do the digi seal to check the load.
In a bored moment I read the user manual on a new FH Volvo. It stated NOT to idle. Feels wrong though
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P Stoff:
In a bored moment I read the user manual on a new FH Volvo. It stated NOT to idle. Feels wrong thoughSent from my SM-J510FN using Tapatalk
Also didn’t say start up and thrash the ■■■■■■■■ off it. 
muckles:
P Stoff:
In a bored moment I read the user manual on a new FH Volvo. It stated NOT to idle. Feels wrong thoughSent from my SM-J510FN using Tapatalk
Also didn’t say start up and thrash the ■■■■■■■■ off it.
Mines the same, new around 4 months ago. Diesel engines take a long while to warm up just idling, the quicker the oil gets hot the better and the only way to do that is get the turbo working.
Ill drive mine on part throttle being careful not to unleash the beast until its at normal temperature/
Harry Monk:
What are folks’ views on whether it is good practice to allow an engine to warm up on tickover for a short period before setting off? I got moaned at today for doing this and was told it is unnecessary on modern engines, is this so?
They say a rule of thumb with a modern engine is to start it when you’re finally ready to go, but let it warm up while you put your seat belt on.
In other words, give it a few seconds before revving it up into normal use, to allow the oil to fully circulate, and that’s all.
AndrewG:
muckles:
P Stoff:
In a bored moment I read the user manual on a new FH Volvo. It stated NOT to idle. Feels wrong thoughSent from my SM-J510FN using Tapatalk
Also didn’t say start up and thrash the ■■■■■■■■ off it.
Mines the same, new around 4 months ago. Diesel engines take a long while to warm up just idling, the quicker the oil gets hot the better and the only way to do that is get the turbo working.
Ill drive mine on part throttle being careful not to unleash the beast until its at normal temperature/
And that looks right to me.
Idling it wont get warm. Trashing it from the start wont do any good. Start up, soon after drive it gently, giving it more juice as it reaches temp.
The only problem is trying to pull onto a busy road at half throttle, the traffic doesn`t always appreciate our gentleness!
As others have said,it’s not so much to warm the engine up as it is to get oil round the turbo and engine galleries.Similarly don’t switch off immediately after a run.Let oil run around to cool the engine for a minute or two to avoid heat soak in turbo bearing while turbine still turning.
When I am parked up at my house at this time of year, I walk across the road and start it up, turn the heating on and go back to my house for 15 minutes. If I am in my cab all night the engine will be running the whole time. We are way behind in the technology front in this country, I have never seen an engine block heater on any truck, so you don’t turn on the ignition and see a cylinder warming light, they have not invented that even though it has been standard in the UK since I can remember. If I can drop my trailer and park on my driveway I plug the engine into the house and keep the whole thing warm all night.
Here’s a good insight into why you should idle as little as possible: https://www.youtube.com/watch?v=hvfMal5fReA
Also personal experience with my own Scania for 600 thousand kms - kept idling to an absolute minimum and thanks to that I never had to fill up with oil inbetween the 60tkm oil change intervals. Compared with other trucks on the same work that were using 10-20litres between oilchanges.
Gidders:
Similarly don’t switch off immediately after a run.Let oil run around to cool the engine for a minute or two to avoid heat soak in turbo bearing while turbine still turning.
that’s what i always do…but our driver ‘assessor’,disagrees…and told my mate that the yeti is living in the past with that practice 
quite a few of our ‘60’ plate CF’s turbos blew up a couple of years ago though.
carryfast-yeti:
Gidders:
Similarly don’t switch off immediately after a run.Let oil run around to cool the engine for a minute or two to avoid heat soak in turbo bearing while turbine still turning.that’s what i always do…but our driver ‘assessor’,disagrees…and told my mate that the yeti is living in the past with that practice
quite a few of our ‘60’ plate CF’s turbos blew up a couple of years ago though.
Would your driver assessor still insist turning the engine off if it was in mid regeneration, diesel is cheaper to replace than engine parts
This came up before. I says in one of the manuals (Volvo FH think it was) not to sit idling, but to start the engine then drive away using light to moderate load. Only caveat was if below some very low temp then idle for a bit.
Spoke to a world class engine rebuilding firm who specialises in my car and it was the same advice, absolutely not to warm by idling. Drive straight off using light/moderate loads. It’s also buried in the manual.
What they said was all a bit complicated. Idling a cool injected motor is unhealthy for it. The thermal gradient in the engine is high at idle. Tolerances at their poorest, some bits stone cold, some bits warm. The tolerances are at their worse cold between thrust face of the piston skirt and cylinder and the coolant/lubricant flow rate at it’s lowest. Temp builds up very slowly and unevenly at idle. You’d have to sit quite a while to warm a large engine. Waiting for hot air is no indication of the engine being warm. The blowers can be blowing hot air (coolant up to temp) whilst the oil is still no where near. Even driving in my car it takes 15 mins to get the oil up to optimum temp.
Grumpy Dad:
carryfast-yeti:
Gidders:
Similarly don’t switch off immediately after a run.Let oil run around to cool the engine for a minute or two to avoid heat soak in turbo bearing while turbine still turning.that’s what i always do…but our driver ‘assessor’,disagrees…and told my mate that the yeti is living in the past with that practice
quite a few of our ‘60’ plate CF’s turbos blew up a couple of years ago though.Would your driver assessor still insist turning the engine off if it was in mid regeneration, diesel is cheaper to replace than engine parts
Its not about what costs most, but who pays. The employer pays for the diesel but assuming truck is leased/under warranty the engine isn’t their concern. Same with turning off at lights etc for wear on the starter. Would rather save the fuel as they don’t pay for the parts
kcrussell25:
Grumpy Dad:
carryfast-yeti:
Gidders:
Similarly don’t switch off immediately after a run.Let oil run around to cool the engine for a minute or two to avoid heat soak in turbo bearing while turbine still turning.that’s what i always do…but our driver ‘assessor’,disagrees…and told my mate that the yeti is living in the past with that practice
quite a few of our ‘60’ plate CF’s turbos blew up a couple of years ago though.Would your driver assessor still insist turning the engine off if it was in mid regeneration, diesel is cheaper to replace than engine parts
Its not about what costs most, but who pays. The employer pays for the diesel but assuming truck is leased/under warranty the engine isn’t their concern. Same with turning off at lights etc for wear on the starter. Would rather save the fuel as they don’t pay for the parts
A vehicle is only under warranty under certain criteria, the technicians often use the terms driver misuse and driver error which aren’t covered, this puts the onus on the operator who blames the driver, who was told by an over eager TM to not idle the engine or some other farcical penny pinching idea… But hey ho they get paid the huge bonuses we the drivers get for them
i can see volvo telling tesco to sod off because they use too many starters and lease their trucks elsewhere due to the fact that the driver loses points for every time the truck idles for 3 mins straight.
a few years ago when i was having my years lapse of sanity to try agency tosco work,i was taking a 45 at about 2 a.m in the yard when the tm phoned me to tell me to switch off the engine as one of the drivers had reported me for sitting parked with it running,and if i wanted a heat,it was best to go and sit in the canteen where it was warm…
thats the logic of your fellow tosco type beancounter of a driver.
I prefer to run it for a couple of minutes to get the oil around.
The decision to pull away would be, if I go straight onto the motorway or uphill, I would defiantly run it a bit longer to get some temperature in the oil and components.
Easy empty run, as soon as the pressure is up, on you go.
For the sake of DPF’s and other exhaust equipment it’s important to get them as hot as possible as soon as possible, and this only happens under load and not when idling.
But it takes a bit to get 35 litres or more of oil to start circulating.
It’s a long way up until the head gets lubrication when you start the engine, anybody who ever run and engine with the valve cover removed knows that it can take more than a minute before oil reach the top.
Same is for gearboxes etc. I rather run them a little before I put full load on it, and no it’s not my motor but it doesn’t feel right to trash an engine to the last rev when cold.
I am always surprised how some people are very careful with their own stuff, but as soon as it is the companies stuff they don’t care a ■■■■.
I inspected for a customer 2 17 plate trucks coming back from hire, one was spotless clean, even the tank was polished and the wheel washed.
The other one could have been 10years old, mirror covers missing, dent in the bumper, light out, rear crossmember hit by the pin and etc.
And no they where not used by an agency driver or EE, but one driver clearly to pride in his job, while the other one don’t care whatsoever.
Grumpy Dad:
who was told by an over eager TM to not idle the engine or some other farcical penny pinching idea… But hey ho they get paid the huge bonuses we the drivers get for them
The night heater broke down in a Volvo I was tramping in, so it idled every night due to it being winter in Scandinavia. I used up nearly a ton of fuel by just idling that month. Not exactly penny pinching now is it.
P Stoff:
In a bored moment I read the user manual on a new FH Volvo. It stated NOT to idle. Feels wrong thoughSent from my SM-J510FN using Tapatalk
This, and it’s got nothing to do with modern engines and oil, the handbook for a Merc 1418 said the same thing in the 60s. "Start engine and move off as soon as safe to do so, but do not exceed 2/3 of maximum until the engine is getting warm. " Note not even until it’s reached working temerature.
Where I was parked last night the d/head next to me started his motor up in the morning, and went to the cafe for 15 mins leaving it running.
When he came back I shouted out the window at him ‘‘Hey I aint being any hassle to you am I mate parked next to you trying to sleep’’
He just put his head down, ignored me, got in his cab and ■■■■■■ off.
Inconsiderate ■■■■ Bellender ! 
I wouldn’t care, but when I parked next to him I saw his curtains were drawn, so I was as quiet as poss, reverse bleeps purposely knocked off, backed in, engine immediately off, and taking care to close door quietly when I went for my supper. 
robroy:
Where I was parked last night the d/head next to me started his motor up in the morning, and went to the cafe for 15 mins leaving it running.
When he came back I shouted out the window at him ‘‘Hey I aint being any hassle to you am I mate parked next to you trying to sleep’’
He just put his head down, ignored me, got in his cab and [zb] off.
Inconsiderate [zb] Bellender !I wouldn’t care, but when I parked next to him I saw his curtains were drawn, so I was as quiet as poss, reverse bleeps purposely knocked off, backed in, engine immediately off, and taking care to close door quietly when I went for my supper.
Yet another reason to kip at home in my own bed