very good guess 
and you hit both targets … but the EDM is the refinery (allegedly).
Franglais:
Buckstones:
For what it is worth I see lots of taxis (cop cars too) filling up at the local Shell, there are several supermarkets not far away a couple of pence cheaper, so presume they find it worth the extra. I run my petrol car on Shell, at MOT time the emissions are usually spot on, its on 59,000 miles.Maybe the " on account" prices paid by the cops and taxis at he Shell Station is actually less than the price at the pump at the supermarket?
If Shell makes fuel for £1.00.
Sells on forecourt for £1.20.
Sells to supermarket for £1.05
Supermarket sells for £1.15
But Shell can sell “on account” £1.10Possibly?
Cop cars account possibly Taxis no chance cash business who wants a paper trail [emoji6]
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My trucks ran on Morissons fuel for nearly ten years without issue
can’t beat cheap ,the first set of injectors in my sprinter lasted 500,000 miles on the cheapest derv available.merc dealer says if you get 100,000 out of them your doings well .
chaversdad:
My trucks ran on Morissons fuel for nearly ten years without issue