Do you feather the throttle of your diesel until it reaches 185-190°F?

govols

Member
Whenever traffic allows I'm fairly gentle on all of my vehicles for 5-10 minutes or miles. I don't have a set insistence; I just try to be gentle for a few, when I can.
 

Larry M

Well-known member
No. My thermostat starts opening around 185 and is fully opens a little under 200(?).
 
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EBS-P

Well-known member
No. I don’t floor it until it has some heat but I drive it to not impede traffic.
 

borabora

Well-known member
I try to drive all vehicles gently for 5 minutes after a cold start. Same with the Sprinter. But not surprisingly, survival trumps pampering the engine. So, if I have to I'll floor it.
 

TrackSprinter

2016 Motovan Boondocker
i use a higher viscosity (gasp) than what MB recommends. so yes i am easy (on the boost) until around 130° and then the fluid temps ramp up much quicker after.

from my experience, the oil temp rises quicker from driving it than it does from sitting idle attempting to warm it up.
 

photau01

Well-known member
I run my Espar engine preheater everyday, even in the summer. Then drive it easy in general. Also ease up on the throttle when going up long high altitude climbs. Will drive more aggressively when on a tight schedule for the delivery of a load. 173,000 miles so far. Hoping for over 500,000.
 

QwkTrip

Not so well-known member
I always use gentle throttle inputs and limit rpm until engine and transmission are warmed up.
 

Green Maned Lion

Der Unverbesserliche.
I'm generally gentle, with me not being gentle being the exception. But where I live, it's 25 mph- or less, because kids walking about, especially around school time because both the elementary school (a third of a mile from my house) and the intermediate school (about a mile and a half from my house) are walking-only for my area and there are a lot of kids- necks on a swivel- for the first mile or so. So its only the winter when I'm pulling on to a higher-speed road with less then 2-3 bars on.

Actually, I don't feather the throttle at all, come to think of it. It's a gentle drive to the end of my block and the stop sign, and then Distronic handling everything else but stopping thereafter. So, for example, turning out of the village onto the main road, I set Distronic to 50 once I get to the traffic light ( which is the limit on that road), and then the light turns or traffic starts moving, I just hit resume. Van accelerates as it wants to.
 

Kajtek1

1922 Ford T. No OBD
Diesel will never reach 185f on idle. Even in warm climate.
Even my 1972 Detroit 2-cycle wasn't going much above 120 at idle.
Maybe pushing it above 2000 rpm would do the trick, but that becomes danger.
For me, from turning the starter to vehicle rolling is 3 second, or less.
That was even with old, carburated engines in cold climates.
Only at around 0F I would give it few more seconds.
 

Cheyenne

UK 2004 T1N 313CDi
I have considered buying winter shields for my grille for the winter. I bet that would help cheaper than an Espar.
Be careful blocking the airflow on a Diesel!

If the airflow to the intercooler is also blocked you may reduce its performance and put the engine into a LHM condition.
 
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