yeah. i haven't touched since DI. Doubt I'll get a chance to get back in with a baby on the way. True way of knowing if your engine needs an oil change is an oil analysis through companies like Blackstone. I think they charge $15 and they will give you a total analysis of used motor oil sample (i.e. heavy metals, visocity left, etc etc.) Then u can gauge how often to change oil. They will send you a container and you send it back along with the check.