Hi, new to the forums. Iv visited in the past but can't seem to find any real answer to my question (many mixed reviews). Iv also checked UOA and wasn't able to find anything good. 95 Buick Regal 3.8 Series 1 92.5k miles Car doesn't consume anything (beyond to much gas). Bought from a one owner elderly lady. Car runs good but I want to service the car myself and do typical maintiance and minor repairs. I like MaxLife but iv seen many mixed reviews on it some saying 10k is fine and others saying it was shot at 6k via UOA. I'm running 10w-30 full synthetic and a Fram ultra synthetic filter. Never had any UOA done but I have requested a kit from Blackstone. Any suggestions or recommendations on a good OCI (trying to save money since I can use great oil for even less then conv. when doing myself). Not trying to squeeze every mile out just not looking to do 5k since that's what iv been doing with cheaper conventional. Owner manual recommends 7500 for conv (doesn't list synthetic) in my driving conditions since all my trips are mixed interstate/highway 30+ miles. Contacted Valvoline they said 3k miles or owners manual.