In general, oils should be compatible with each other. It is not likely that you would form gel by mixing the two oils. However, we would not recommend mixing oils as a general practice because oils are complex mixtures of additives and base oils that can be destabilized.
I've heard it said many-a-time that if you mix conventional with synthetic you will have problems. In fact, multiple instructors of mine at Universal.
Find out how switching to a synthetic oil that cleans is so important, and how we debunk the. Myth: Once you switch to synthetic oil, you can never switch back.. â€œsynthetic blendâ€ already has synthetic oil and conventional oil mixed together.