Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Dutch on January 09, 2010, 02:23:58 PM

Title: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Dutch on January 09, 2010, 02:23:58 PM
On the continent the oil companies automatictly start selling 'winter diesel' once winter approaches.
All I know is that they add additives that prevent diesel from 'freezing' i.e. that the parrafins don't solidify in the freezing temperatures.
Does the UK sell winter Diesel now as well ?

Also heard that folks add a bit of petrol to a full tank of diesel, does this work ? Is it harmful for modern diesel engines?

How do you cope in -10, -15 ? Does adding red-X make a difference ?  What do you do if the old oilburner does not want to wake up. :sleepy:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: ivanidea on January 09, 2010, 03:16:23 PM
I've had no problem at -10 C with the standard road diesel I have purchased, although I have noticed my commuting mpg has dropped from 27mpg to 19mpg  :011:

I assume additives have been added by the fuel company tp prevent the fuel from freezing.

At this rate, it might be more ecomnomical to drive the TJ!

Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: gazjeep on January 09, 2010, 04:48:10 PM
MPG in my Touareg has dropped off 10 - 15% too but it is bloody cold though  :icon_winkle:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Bishops Finger on January 09, 2010, 05:21:25 PM
Gaz thats because it keeps heading off to invade Poland...

Oh and are you getting MM to start it every hour through the night at the moment...? :017: :hysterical: :hysterical:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: gazjeep on January 09, 2010, 06:33:18 PM
Funny that, it does seem to want to pull to the east in the morning  :003: :003: :003:

Nah mate, thought it was a bit OTT to ask being so close to her birthday n all, maybe next week  :003:

Unearthed the Merc from beneath a its very own snow drift earlier, started first time bless it, the Jeep is the one tucked up in the garage  :icon_jook:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Bishops Finger on January 09, 2010, 06:39:34 PM
Just watch out for those pesky T34's...
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Dave69 on January 09, 2010, 11:46:06 PM
there is no official winter diesel for sale in the uk. the diesel has an anti-freeze chemical already added which works down to -10 or -15 before sludging starts to happen. Propper winter diesel is used mainly at temperatures less than -20 deg C
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: The Transporter on January 12, 2010, 09:11:48 PM
UK weasle water is good for minus 20.... Much below that then you have to light a small fire under the fuel tank, which can be tricky if you have a plastic tank... :icon_eek:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: brian reid on January 21, 2010, 09:28:50 AM
most car use more fuel when there cold,and even more so when it -10c -15c,the engine take longer to heat.

in the uk they dont market diesel as winter diesel,but i do know they do put an additive in during the winter months,this additive is added to the tankers before they leave the depot,it not added during the defining process,anti smoke additive are added at thjis point also.

if your getting hard starts in the cold winter mornings changes out your glow plugs,shit will make a huge difference to cold starts.

regards
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: tim_aka_tim on January 21, 2010, 04:45:16 PM
Actually, having a cold engine taking longer to warm up is only a small part of the
problem in cold temperatures. In the cold, the air is denser, which changes the combustion
properties and thus your engine uses more fuel.

Hypermilers use warm air intakes to heat the air before it's ignited - the mpg gains are
surprising.

Even I have noticed that mpgs go up loads when its 100 degrees vs the recent 30 degrees.
Luckily for me, it's 90 degrees for months on end here (https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fyahoofreak.com%2F3D%2520Smileys%2F3D%2520Everyday%2520Smileys%2Fsunbathing.gif&hash=fd55d07a48fe57f70dd1677da44f901b8db3db86)
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Bubba on January 21, 2010, 06:15:10 PM
BASTARD :wave-fingersmiely:
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: tim_aka_tim on January 21, 2010, 07:30:33 PM
It's not necessarily a blessing. You cant ever get shit done because of the constant and
overwhelming desire to cook on the barbie and drink weak lager.
Title: Re: Winter diesel - Starting/running diesels in sub zero temperatures
Post by: Bubba on January 21, 2010, 07:38:39 PM
I HATE YOU YOU BASTARD