While under warranty: Find a quality oil that is on sale and follow your owners manual for specifications required and OCI and choose an oil that meets those requirements and change accordingly. Doesn't matter what brand you choose so long as it meets the manufacturers specifications and it's changed on time. You will keep your warranty and you will have long engine life. After warranty: Find a quality oil that is on sale and follow your owners manual for specifications required by your engine and choose a reasonable OCI. Do a UOA with a TAN/TBN and see how your choice fares in your application and consider extending your OCI based on the numbers and your comfort level and change accordingly. You will continue to have long engine life... Brands don't really make the difference, proper OCI's and regular maintenance do... Combine this with a quality filter and you will drive more miles that you probably want to and save a lot of money in the process!