I believe you are thinking 1+1=4.
dieselbolan contains dimethazine/max lmg.
dimethazine is two methyldrostanolone (sd) molecules bonded together with an azine bond, when in the stomach, the azine is broken off to yield free methyl drostanolone.
max lmg is a ph to 13b-ethyl-19nor-androstenedione.
if you want to run a stack, diesel is already a stacked product.
beastdrol is methyldrostanalone (superdrol). stacking the two will not produce more gains than running rec. dosage of just one of the products, but it will increase the side effects, and the level of hpta shut down, more severe.
if you plan on using steroids, I recomend all to please educate themselves properly, to prevent themselve from becomming a statistic we'll see on the news, being used as a poster boy for anti steroid fanatics.