Hello, soon wanted to make an oil change at my ABT (about 110tkm down) again. Otherwise I used to drive 10 W 40 or 15 W 40, but in view of the favorable price of the highstar oil in the practitioner I wanted to test it. Now I only have the fear that the soup could squeeze out after the change, possibly at the one or other engine seal, because I previously drove thicker oil. I have read this before, or is it a fairy tale? I had lost oil. none at all. Is there any opinions there? Greetings