Search results

  1. S

    Found an old product data sheet for Mobil 1

    According to this data, there seems little doubt that Exxon Mobil began blending their 5W30, 10W30, and 15W50 formulas with a good dose of group III base stocks. As I know that the base stock composition of their 15W50 product remained unchanged from the SH to the SJ transition, this practice...
  2. S

    Found an old product data sheet for Mobil 1

    According to this data, there seems little doubt that Exxon Mobil began blending their 5W30, 10W30, and 15W50 formulas with a good dose of group III base stocks. As I know that the base stock composition of their 15W50 product remained unchanged from the SH to the SJ transition, this practice...
  3. S

    Mobil 1 SJ, SL, and SM Comparisons

    After finding a vintage bottle of SJ Tri-Synthetic 5W30, I may have discovered something that was new to me, though perhaps not to veterans on this forum. I know the PAO/Group III debate is an old and tired one, but it does seem that Mobil has indeed altered its base stocks beginning with the...
Back
Top