A little Diesel is good- - - -5% or less by volume. A lot isn't necessarily better. Putting a TINY amount of gasoline in a Diesel fuel tank supposedly helps keep the injectors clean, but don't overdo it. I'm headed to Washington state next week to inspect a brand new 2018 Freightliner that hand-grenaded the engine when somebody topped off the fuel tank with unleaded gas!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!