Originally Posted by 69GTX
The days of high calcium and no magnesium oils appear gone. And even Valvoline has ditched the sodium to go to magnesium. If you want high Calcium and no magnesium (like Pennzoil and QS used to be), some of the 40 and 50 grades may still give it to you.
Dollar for dollar the QSUD and SuperTech Synthetic oils are a good value for the quality they provide to consumers. Less marketing keeps the prices down I guess.