RE: motor oil
Owning a parts store i here my fair share but for the record all oils are going to be synthetic or semi-synthetic eventually. the ones that wont will be the house brands, they will keep a non syntec. the best thing is to put in a qt of lucas oil stabalizer with every oil change for example if your vehicle takes 5qts put in 4 and 1 of the lucas. and lucas is so good that when you change your oil the next time you can still feel the lucas in the oil it will not break down.