Spotted the 5-qt. jug of Mobil 1 0W-30 on an I-was-desperate run today at Walmart for $23.50 (whereas the quarts are $6 or so). Though I won't be changing my Buick's Castrol Edge 5W-30 until about November, it started me thinking.
I know it's overkill for my application, that I can do just as well and cheaper for 6-month/6K-mile OCIs with other synthetics or even dino. But I plan to change the oil myself this time (I hope!), so the labor cost is zero; and I'm curious to see if it might eke me out a tiny bit more gas mileage in the blink-and-you'll-miss-it winter we have here.
If you've used it, what were your experiences? If your car leaked oil before, did M1 0W-30 leak more, or less, or none? Any gas mileage improvement, even if it was just statistical noise?
I know it's overkill for my application, that I can do just as well and cheaper for 6-month/6K-mile OCIs with other synthetics or even dino. But I plan to change the oil myself this time (I hope!), so the labor cost is zero; and I'm curious to see if it might eke me out a tiny bit more gas mileage in the blink-and-you'll-miss-it winter we have here.
If you've used it, what were your experiences? If your car leaked oil before, did M1 0W-30 leak more, or less, or none? Any gas mileage improvement, even if it was just statistical noise?