love my S-class diesel
at 120 hp and 3600lbs it is no econo box
but get desent milage in town and great milage hi-way
and can out run most traffic except from a dead stop
and will top a 100mph and go 80 all day without a care

but fuel costs are INSANE HERE [S fla] with diesel 20+ per gal more then hi-test
3.35-3.45 yesterday

Around $3.25 for regular up to $3.45 for premium here. I've been paying $3.49 for diesel for awhile. Before diesel was lower than gasoline for a short while. Maybe if the price of gas rises high enough, diesel will once again be cheaper. On balance my wife & I apend a relatively small amount on gasoline since she only works 2 1/2 miles away from home.

That is true to a certain extent.
Straight run diesel and gasoline are separated from the crude oil, but that's only a small part of the finished product.
Refineries can take oils and such and rearrange the molecules to make almost whatever they want. the raw feedstocks can be turned into gasoline, or diesel, jet fuel, or home heating oil.
Since heating oil is basically a very clean kerosene which is close to diesel, the same operating units usually make both. So if they are maximizing home heating oil through a hydrocracker, that takes away capacity for making diesel.

if they take away diesel producing capacity it reduces the amount available which drives up price. Nowadays we import so much fuel from overseas the market is supposed to be more stable but with emerging markets like China competing for that fuel it makes everything less stable and raises the price.

The last time I was in eastern Europe (back in July) I paid approx $2 a liter. Only the mafia drive the big SUVs and the 8 cyl. Benzos.