Re: 0W-40 oil discontinued
believe it or not synthetic oil starts out as regular crude, then is refined down to a point that the fossil portion is gone and only contains certain molecules. I am not an oil chemist but I believe it takes about 2 qts of crude oil to make 1 qt of synthetic oil! I have been in the auto repair biz for 20 yrs and just learned this about a year ago.so yes synthetic oil prices are tied to crude prices.