1. Apr 4, 2026 at 9:12 AM #41
   

   SRT-Tom Well-Known Member Staff Member Super Moderator Article Writer

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   Here is a synthetic oil comparison that tested stress-tested 8 full synthetic oils.
   
   The results were as follows:
   
   1. Mobil 1 ESP (Best Overall)
   2. Redline
   3. Amsoil
   4. Mobil 1
   5. Quaker State
   6. Pennzoil Platinum
   7. Valvoline
   8. Castrol Edge
   
   Japanese Mechanics Tested Synthetic Oil Brands — #1 Is Unexpected

    

   Last edited: Apr 5, 2026
2. Apr 5, 2026 at 1:58 PM #42
   

   SRT-Tom Well-Known Member Staff Member Super Moderator Article Writer

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