Serious question and welcome all input. It appears that conventional oils have closed the gap with synthetics compared to a few years ago. So if you dont live in an extreme environment is it even worth it to stick with synthetics. Will the best conventional oils supply all the protection you need? I am not too cheap to buy synthetics but if conventional will get the job done is it worth it? I have to change my oil based on time rather than miles as I drive a lot of short trips. Thanks.