So as of right now you are sitting at around 90-100mgs/ml. from what your recipe indicates including the loss of filtration. (just guessing here of course)
adding a few MLs of oil will decrease your concentration by the total volume of oil vs the total Grams of powder. So take your 100 mls, add 2 mls and you will be at 98.mgs/ml or add 5 mls oil you will be at 95.23. its roughly 3mg loss per ml. Solvent will run the solution thinner but the last thing you want with PIP pain like you have is solvent. tren ace also affects the injected area with the acetate ester, the high solvent content is like adding salt to the wound. use heating pad or hot wet wash cloth place on the affected area and dissipate oil the area see if that helps.
10 grams equals 10,000 mgs
100mls solution
divide the 10,000 by the total volume of solution to get estimated mg/ml dose.
Make sure you know how much oil you want to filter and add and I suggest it be warm to blend in with the solution, cold filtered oil will separate in premade solution.