-> Thanks Elvis,  I have heard that some `summer' grade diesel gets
-> `thick' in the winter !  Is this related to the paraffin content ?  I
-> do not know much about paraffin but do know that there is a paraffin
-> wax.
I don't know how much paraffin is permissible, but the stuff Pemex (The
Mexican National Oil Co.) turns out causes Gringo Diesels to grind to a
halt.  GM didn't know much about building consumer type Diesel engines
and NOBODY knew much about operating them over the road, so it was a
circus here for the first couple of years.
Since US Diesel cost about a buck a gallon and Mexican Diesel cost forty
cents a lot of people put BIG aux tanks on their pickups and RV's and
filled up in Mexico.  The paraffin killed them!
Paraffin as I know it is a waxy SOLID at any reasonable temperature, so
it really aint good for fuel to have much in it.
 ^..^
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