Quote Originally Posted by l3vnd1 View Post
Can you Mix 5 - 30 with 10 - 40 and make a hypothetical 7.5w - 35w? (like octane)
Doesn't really work that way. But I do have 1L of Elf 5w-30, 2L of Edge 5w-30 and 1L of Mobil 10w-40 in my engine now.