Originally Posted by black beauty
ya know when you get people talking about oil its going to be a fight every time its not bad to use thin oil i use 0-30 in my truck in the coldest time of the year and the hottest part of the year. its not bad to be changeing the different viscosity's but its more if you change the brand that is way worse for the engine. if you want to save yourself the fighting stick with what your truck calls for
OK - one comment, one question:
Comment: Lived in Phoenix for 30 years. I was always told (at leas for the cars I owned) to us a slightly thicker oil during the summer months (10w40) and in the winter months use (10w30).
Question: This is the first big truck I've owned and I'm out of the heat. What's the case for / against using a synthetic oil - or perhaps a blend? Is it that big if a deal to do so? My first oil change is in July - and if it makes that big of a difference I might as well start running synthetic.