I had the Valvoline one when i was one of the sheeple just going to the Valvoine Instant Oil change place in front of my work, now the only one that sounds interesting to me, just for the challenge of it, is the QS.(unless they've changed it) had to start by 75k mi, and if you made it to 300k mi, using only QS oil, they would cut you a check or the KBB value of the car - up to $3,000.(and you got to keep your 300,000 mi car)
only reason i call it a challenge, is i only drive about 8,000mi a year. (bought the sable 01/24/14, and as of 01/24/15, i had put 7,740 mi, including a 2200 mi round trip to TX)