1000 miles 10qts of oil "HOLY COW". My 74 decided it liked 30wt better than gas, but I was blowing no smoke or fouling plugs??? I check all around for leaks and found nothing. I have not done a compression test yet, and think I might be getting fuel in my oil, fuel pump diphram maybe? The no leaks or smoke is part that has me stumped, 10qt you think you would see it somewhere. Does anyone have some a clue? 74 K5 Leave it like you found it, or better!