Additives

[rodpaslow]

I will give that a try, the freezer thing.  I'd like to be able to use it when its cold cause when it gets real cold here; anywhere from -20° to -40° is when it really starts to rattle/clack when the engine is cold.  I usually run a bit of gel reducer at the -40 temps just in case, you don't want to be stranded when its that cold.  I don't know if that's necessary with ULSD.  Thanks for the tips.

[mtrans]

I'd like to be able to use it when its cold cause when it gets real cold here; anywhere from -20° to -40° is when it really starts to rattle/clack when the engine is cold.  I usually run a bit of gel reducer

I never put antygel in oil,try first in jar because it's design for ULSD.My max temp is -15c mostly,for drive oil on -40c your car need GOOD MODIFICATION,which by way you didnt say world- please do.
remmember:heated fuel line,looped return etc
you will parhaps need to heat PICK up on tank,or all tank.I start and stop on ULSD,swich to oil on min 60c motor temp.Never mix wmo and wvo,use as mach (only?)atf as you can.

[rodpaslow]

As for driving in, what I call cold (I know farther north gets colder yet and they have to run a mixture of stuff, not sure what) is between -35°C to -40°.  It got about -35° with wind chill at about -50° and I was able to drive without adding any additive to thin the oil just this past winter.  I had a diesel 10 to 15 years ago and it would run in that cold of temperature, but back then I had to add a bottle of something to keep it thinner.  I think with ULSD I really don't need to.  I didn't last winter....

I tried the mineral oil in the freezer.  It was a bit thicker than temps now, but nowhere near a freezing point as there were no crystals (which I would expect) if it were near freezing.  Good news for using it most of winter up here.

[mtrans]

for drive oil on -40c your car need GOOD MODIFICATION,which by way you didnt say world- please do.

Your plan?

[ORCoaster]

I think mtrans is looking for some sort of heater on your fuel.  That would be nice, but?  is it necessary?

[rodpaslow]

I've ran it with no fuel heater last year and I don't plan to add one.  I haven't had a hiccup yet with it so if it works don't change it.  The only thing I do have which I'm sure most Canadians don't is two block heaters.  When really cold I'm sure this helps.  At -20 when it's plugged in for a couple hours the glow plugs don't even come on.  I don't think this helps a fuel gelling issue though if it happens.

[mtrans]

I think mtrans is looking for some sort of heater on your fuel.  That would be nice, but?  is it necessary?

Yes you are on spot.

rodpaslow
Yes this helps,water webasto is another thing even better,but every bit of heat before IP is huge help(after also but hard too).
One can put raw oil and drive but q is how long?
Do you use 2 tank?

[AudiVWguy]

Say you have a Giles Superpump, do you think the paraffin would be a problem because the internal pump pressure is within specs. I see there would be a Cetane and lubrication advantage, but the dynamic timing would get out of spec (maybe)?

[R.O.R-2.0]

it would probably be overly advanced at some point in the RPM range..

[ORCoaster]

The Wax treatment is mainly for compensating for wear on the old IP's we run.  That and the ULSD fuel we are running.  I would think the other methods of increasing cetane might be of value if your pump is within specs at low and high RPM's 

[AudiVWguy]

Ya, that's kinda what I was thinking too. So, from a most Cetane stand point, how would you rank what"s out there?

[rodpaslow]

I'd be interested in best cetane adders as well.  I mainly use the mineral oil (parrafin) for the lubrication since ULSD has lost so much of it.

[mtrans]

Good thing is some nitro staff not gas.
You can get 2-ethylhexyl nitrate here http://vegetableoildiesel.co.uk/veggiboost.html,I can't so it' second hand story.
I'll like some DIY from eazy find hem.

[AudiVWguy]

Anybody tried 2-ethylhexyl nitrate yet? So how many ounces per 10 gal would this be? This could be a great solution, if it's not super expensive.

[rodpaslow]

It looks like it should work as a cetane improver. http://www.atc-europe.org/public/doc79-2ehn.pdf

I'd give it a try, just where would you get it from?(I'm in Canada)