Depends on the amount added and the engine. There are two immediate impacts of diesel fuel mixed with gasoline: the octane is lowered and the fuel vaporization is reduced. The lowered octane may cause the engine to knock. YUng ibang engines have knock sensors and the electronic controls will adjust the timing and other engine conditions to try to control the knock. If the knock remains significant it can damage the engine by causing metal fatigue eventually leading to failure of critical parts like pistons, connecting rods, heads.

In your case, nakatakbo na ng 5-10 kms... at kamo namatay na ng tuluyan. Balitaan mo kami.

Dapat kasi magkaroon ng rin dito ng different size of diesel nozzle compared sa gas nozzle para may distinction. kaso dito pa!