Winter diesel

[picassodad]

Same question asked in Peugeot section ...

Winter diesel at forecourts in Oct/Nov ?

At what temp does wax fall out happen with summer diesel please ?

Ditto for winter diesel please ?

Is there a fuel additive to boost non wax dropout please ?

Thanks

[myglaren]

Some chuck a small amount of petrol in that helps avoid waxing. I never did and have never had a problem. Have a petrol car now though.

[picassodad]

I am sure the pugs diesel suffered wax drop out some years ago. There seemed to be small flakes or crystals floating about in the Seidel. I put 2 litres in a pop bottles and allowed it to warm gently in front of the fire.

You know when you add a liquid to your scotch, swirls are seen in the liquids, water joining the spirit or visa versa.

Same thing was happening to the diesel, the swirls, and the flakes if whatever were seen to reduce, finally disappearing. The diesel was quite warm by that stage.

I know of the engine cooling system, fuel warming system, hence the fuel cooler under the car on the fuel return circuit.

Would like to know the wax drop out temps for summer and winter diesel, and an additive please ?

Thanks.

[Dormouse]

Try this
https://www.nationwidefuels.co.uk/oil-g ... er-winter/

Courtesy of MattBlancs thread

[picassodad]

Thanks doormouse, informative article.

So I may have just over half a tank of summer diesel.....mmmm lots of cans needed I fear.

[Dormouse]

It's your filter that will be the problem. A low powered air heater or hair dryer would help that and the pump warm up. There are a few winter additives for diesel available but they all have the same problem that they need mixed into the existing diesel. They will never reach the filter or the pump from the tank until diesel has gone all the way through.
Alternatively, get the vehicle inside a warm garage or shed and start it normally when it is warm and then add additives or winter fuel. If you live in Braemar or similar, it is winter fuel AND additive.

[picassodad]

Thanks. Temp has risen here to way above freezing.

Engine starts fine so left running to get to normal temp. Done that a few times now.

Need to burn off or to be safe empty tank and put some known winter diesel in.

Car seems to run fine at the moment.

I should draw some fuel off from the filter and Sample for small flakes/crystals...

[Jay-Bruce]

I've got diesel in my blood, grand father was a truck driver, dad was a transport manager who held his HGV license, I've got my class 2 + hiab licenses, although I work offshore, but even there, before going into hydraulics, I did spend a lot of time as a motorman, babysitting trucking great big diesel engines that the gennies that powered the rigs. As far as I'm aware, with the increased standard of fuel production, modern additive packages, and warmer winters arising from climate change / global warming, blighty doesn't get cold enough to need winter diesel.