Shell's nitrogen-enriched diesel fuel is available, on a trial basis, at select fueling depots across the country. For now, that means commercial and retail customers at Shell stations located in ...

and it contains the highest concentration of proprietary detergents of the three grades of gas you'll find at Shell stations. The brand name of those detergents is "Nitrogen Enriched Cleaning ...

Demetrius Frazier, 52, was pronounced dead at 6:36 p.m. CST at a south Alabama prison for his murder conviction in the 1991 rape and killing of 41-year-old Pauline Brown. It was the first execution in ...

BP promoted an “Invigorate” fuel additive with environmental benefits. Shell’s “Nitrogen Enriched Cleaning System” claimed to produce less emissions. And ExxonMobil advertised fuel that ...