Orals like dbol, drol anavar, and winstrol have terrible solubility in oil.
Way back in the day before all the mexican vet labs and ug labs I was lucky enough to try Quimper Metandiabol from Mexico which was a 50 ml vial of 25 mg per ml.
Cycled it with test and deca at 1.5 ml EOD and gained an extra 11 lbs.
Gains were similar to deca - solid but a little more water, sides were reduced compared to oral dbol.
I also took it EOD as there was/is no way that the oil is absorbed and distributed from the depot injection based on the half life - people were telling me to take it every 6 hours based on oral half life. NOT.
A few times since then when had access to raws - made a 25 mg/ml oil soln max at standard solvent levels.
Took a few brands here and there over the years that were higher mg/ml claims like 50 mg etc and found them to be too toxic/sides to get to the actual benefit of the drug itself.
Not sure about 100 mg/ml that would be like injecting venom I would think.
If you have a good source it would be an advantage over the oral version for sure.