Why is my delt getting so red?

i'm i'm currently runnin 1000mg/w of test E 1cc each delt mon and 1cc in each quad thur. when i'm shot my delts they turn red all down the side of my bicep its much worse on the left side i have no problems with the quad injections have any ideas? not all that painful just don't understand whats going on i'm also using .5 of sterile oil in each cc cause this **** was insane on the BA .

How many mg is each cc. I dont understand the last sentence {im using.5 sterile oil in each cc this****was insane on the BA. Did you heat this and run it throug a syringe filter.

Why don't you try your glutes instead of your delts?