Why dont other companies label their oil filters with specification labels?
Frankly we do not know, but we speculate that they do not want you to know how poor is the real quality of their products ! *(There are 1,000 microns per one millimeter or 25,400 per one inch). Motor Oil (General) Q: Which SAE rating is the best ? A: SAE 0W-60 but it is not available, yet ! Theoretically the best possible SAE Viscosity rating is 0W-60, but only small experimental quantities of such lubricants were ever produced. The NASA SynLube is rated SAE 0W-60, but it sells for $90.00 per Liter, therefore it is not economical or practical for average automotive use. Below is the list of SAE Viscosity Ratings in order of preference from Best to Worst. The Best Possible SAE 0W-60 (Very Expensive) The Best Available SAE 5W-50 (Possible only with Fully Synthetic Motor Oil) 2nd Best SAE 5W-40 for Colder Climates (Synthetic or Blend) SAE 10W-50 for Warmer Climates (Synthetic or Blend) 3rd Best SAE 5W-30 for Colder Climates SAE 10W-40 for Normal Climates SAE 20W-50 for Hot Climates** Aver
